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+ COST COMPARISONS WITH ACCUEVOLUTION AAA, AA, C, D, 9V
Just 1 can save you a LOT more than $500 on batteries.
1A. One 800mAh AccuEvolution AAA vs 1000 Alkalines
. NET PROJECTED SAVINGS = $789.73.
Savings vs lithiums is even greater than for alkalines.
PROJECTED COST OF 1000 CYCLES USING AAA ACCUEVOLUTIONS:
Over the course of 1000 full discharge/recharge cycles, one 800 MaH AccuEvolution 'AAA' can deliver 800,000 mAh of power (0.98 kwh).
- At a cost of $1.40 per battery plus $0.12 in electricity* for a lifetime of recharging, this AccuEvolution delivers 800,000 mAh of power at a total cost of $1.52.
- Total cost per 100,000 mAh = $0.19.
To compute total cost of using an AccuEvolution with a different battery and electricity price than shown in example, please see 'Doing Your Own Computations' below.
PROJECTED COST OF 1000 CYCLES USING AAA ALKALINES:
In general use, it takes takes 1000 non-chargeable alkaline batteries (800 mAh each) to deliver the same amount of electricity as one AccuEvolution discharged and recharged 1000 times.
To compute total cost of using alkalines with different capacity and/or price than shown in example, please see 'Doing Your Own Computations' below.
ESTIMATED SAVINGS, ACCUEVOLUTION vs ALKALINES: $791.25 - 1.52 = $789.73
We're confident that no AAA battery of any type or brand can surpass this cost performance.
1B. One AccuEvolution AAA vs one NiMH LSD/other brand
.NET PROJECTED SAVINGS = $490.20..
Lower ACTUAL capacity & longevity of other brands makes a big cost difference over time.
EXAMPLE A: A highly marketed AAA Low Self Discharge battery on sale for $1.10 each was tested and found to have a capacity of just 704 mah - rather than the stated 800 mah. If this battery actually lasted through 1000 cycles, it would have a lifetime capacity of just 704,000 mah, which is 96,000 less than an AccuEvolution rated at 800 mAh per cycle. This amounts to an estimated lost savings of $94.95, the equivalent of 120 alkaline batteries (800 mah) at cost of $0.75 per alkaline plus 5.5% tax.
EXAMPLE B: A significant number of the AAA Low Self Discharge batteries on sale for $1.10 exhibited serious defects, such as excessive heat generation and rapid self discharging. Batteries with such defects normally fail after just a few cycles. Lets assume, perhaps optimistically, that these batteries last for an average of 500 cycles (vs around 1000 cycles for a higher quality battery). The cost of 500 fewer cycles amounts to an estimated lost savings of $395.25, the equivalent of 500 alkaline batteries (800 mah) at cost of $0.75 per alkaline plus 5.5% tax.
ESTIMATED SAVINGS LOST BY USING OTHER BRAND: A + B = $490.20.The clearance price for other battery is generally around $0.50 less than BearWobble's everyday price for an AccuEvolution.
1C. Doing your own computations -
Projected cost of using AAA alkalines with DIFFERENT battery capacities and/or prices:
800,000 X actual cost of one AAA alkaline / actual mAh capacity of one AAA alkaline.
Projected cost of one AAA AccuEvolution over the course of 1000 cycles - with DIFFERENT prices per battery and/or and DIFFERENT cost of electricity:
0.98 kwh X actual cost per kwh + actual purchase price for one AAA AccuEvolution.
* Electricity rates in the US range from about $0.06/kwh in WV to $0.1523/kwh in CA. At $0.12 per kwh (the national average as of April, 2009), the cost of electricity for fully recharging an AccuEvolution AAA 1000 times is slightly less than $0.12.
2A. One 2200mAh AccuEvolution AA vs 1000 Alkalines
. NET PROJECTED SAVINGS = $1031.33..
Savings vs lithiums is even greater than for alkalines.
PROJECTED COST OF 1000 CYCLES USING AA ACCUEVOLUTIONS:
Over the course of 1000 full discharge/recharge cycles, one 2200 mah AccuEvolution 'AA' can deliver 2,200,000 mAh of power (2.64 kwh).
- At a cost of $2.25 per battery plus $0.32 in electricity* for a lifetime of recharging, this AccuEvolution delivers 2,200,000 mAh of power at a total cost of $2.57.
- Total cost per 100,000 mAh = $0.12.
To compute total cost of using an AccuEvolution with a different battery and electricity price than shown in example, please see 'Doing Your Own Computations' below.
PROJECTED COST OF 1000 CYCLES USING AA ALKALINES:
In general use, it takes 1000 non-chargeable alkaline batteries (2200 mah each) to deliver the same amount of electricity as one AccuEvolution discharged and recharged 1000 times.
- At $0.98 per alkaline battery, your cost for 2,200,000 mAh of power using alkalines would be $980 in batteries plus $53.90 tax (based on national average of 5.5%) - for a total cost of $1033.90.
- Total cost per 100,000 mAh = $46.99 (vs $0.12 for an AccuEvolution).
To compute total cost of using alkalines with different capacity and/or price than shown in example, please see 'Doing Your Own Computations' below.
ESTIMATED SAVINGS, ACCUEVOLUTION vs ALKALINES: $1033.90 - 2.57 = $1031.33
We're confident that no AA battery of any type or brand can surpass this cost performance.
2B. One AccuEvolution AA vs one NiMH LSD/other brand
.NET PROJECTED SAVINGS = $621.37..
Lower ACTUAL capacity & longevity of other brands makes a big cost difference over time.
EXAMPLE A: AccuEvolutions have a higher verified capacity than most brands of size AA Low Self Discharge batteries. A highly marketed AA Low Self Discharge battery on sale for $1.75 each was tested and found to have a capacity of just 1978 mah - rather than the stated 2000 mah. If this cheaper battery actually lasted through 1000 cycles, it would have a lifetime capacity of just 1,978,000 mah, which is 222,000 less than an AccuEvolution rated at 2,200 mAh per cycle. This amounts to an estimated LOST SAVINGS OF $104.42 , the equivalent of 101 alkaline batteries (2200 mah) at cost of $0.98 per alkaline plus 5.5% tax.
EXAMPLE B: A significant number of the AA Low Self Discharge batteries on sale for $1.75 exhibited serious defects, such as excessive heat generation and rapid self discharging. Lets assume, perhaps optimistically, that these batteries last for an average of 500 cycles (vs around 1000 cycles for a higher quality battery). The cost of 500 fewer cycles amounts to an estimated lost savings of $516.95, the equivalent of 500 alkaline batteries (2200 mah) at cost of $0.98 per alkaline plus 5.5% tax.
ESTIMATED SAVINGS LOST BY USING OTHER BRAND: A + B = $621.37
The clearance price for other battery is generally around $0.50 less than BearWobble's everyday price for an AccuEvolution.
2C. Doing your own computations -
Projected cost of using AA alkalines with DIFFERENT battery capacities and/or prices:
.2,200,000 X actual cost of one AA alkaline / actual mAh capacity of one AA alkaline.
Projected cost of one AA AccuEvolution over the course of 1000 cycles - with DIFFERENT prices per battery and/or and DIFFERENT cost of electricity:
2.64 kwh X actual cost per kwh + actual purchase price for one AA AccuEvolution.
* Electricity rates in the US range from about $0.06/kwh in WV to $0.1523/kwh in CA. At $0.12 per kwh (the national average as of April, 2009), the cost of electricity for fully recharging an AccuEvolution AA 1000 times is slightly less than $0.32.
3A. One 4500mAh AccuEvolution C vs 1000 Alkalines
\.NET PROJECTED SAVINGS = $2082.65..
Savings vs lithiums is even greater than for alkalines.
PROJECTED COST OF 1000 CYCLES USING C ACCUEVOLUTIONS:
Over the course of 1000 full discharge/recharge cycles, one 4500 mah AccuEvolution 'C' can deliver 4,500,000 mAh of power (5.4 kwh).
- At a cost of $5.60 per battery plus $0.65 in electricity* for a lifetime of recharging, this AccuEvolution delivers 4,500,000 mAh of power at a total cost of $6.25.
- Total cost per 100,000 mAh = $0.14.
To compute total cost of using alkalines with different capacity and/or price than shown in example, please see 'Doing Your Own Computations' below.
PROJECTED COST OF 1000 CYCLES USING C ALKALINES:
In general use, it takes 1000 non-chargeable alkaline batteries (4500 mah each) to deliver the same amount of electricity as one AccuEvolution discharged and recharged 1000 times.
-
At $1.98 per alkaline battery, your cost for 4,500,000 mAh of power using alkalines would be $1980 in batteries plus $108.90 tax (based on national average of 5.5%) - for a total cost of $2088.90.
To compute total cost of using alkalines with different capacity and/or price than shown in example, please see 'Doing Your Own Computations' below.
ESTIMATED SAVINGS, ACCUEVOLUTION vs ALKALINES: $2088.90 - 6.25 = $2082.65
We're confident that no C battery of any type or brand can surpass this cost performance.
3B. One AccuEvolution C vs one NiMH LSD/other brand
....
.NET PROJECTED SAVINGS = $1336.90..
Lower ACTUAL capacity & longevity of other brands makes a big cost difference over time.
EXAMPLE A: AccuEvolutions have a much higher verified capacity than most brands of size C Low Self Discharge batteries. A highly marketed C Low Self Discharge battery on sale for $4.50 each was tested and found to have a capacity of just 3869 mah - rather than the stated 4000 mah. If this cheaper battery actually lasted through 1000 cycles, it would have a lifetime capacity of just 3,869,000 mah, which is 631,000 less than an AccuEvolution rated at 4,500 mAh per cycle. This amounts to an estimated lost savings of $292.45 , the equivalent of 140 alkaline batteries (4500 mah) at cost of $1.98 per alkaline plus 5.5% tax.
EXAMPLE B: A significant number of the C Low Self Discharge batteries on sale for $4.50 exhibited serious defects, such as excessive heat generation and rapid self discharging. Lets assume, perhaps optimistically, that these batteries last for an average of 500 cycles (vs around 1000 cycles for a higher quality battery). The cost of 500 fewer cycles amounts to an estimated lost savings of $1044.45, the equivalent of 500 alkaline batteries (4500 mah) at cost of $1.98 per alkaline plus 5.5% tax.
ESTIMATED SAVINGS LOST BY USING OTHER BRAND: A + B = $1336.90
The clearance price for other battery is generally around $1.25 less than BearWobble's everyday price for an AccuEvolution.
3C. Doing your own computations -
Projected cost of using C alkalines with DIFFERENT battery capacities and/or prices:
.4,500,000 X actual cost of one C alkaline / actual mAh capacity of one C alkaline.
Projected cost of one C AccuEvolution over the course of 1000 cycles - with DIFFERENT prices per battery and/or and DIFFERENT cost of electricity:
5.4 kwh X actual cost per kwh + actual purchase price for one C AccuEvolution.
* Electricity rates in the US range from about $0.06/kwh in WV to $0.1523/kwh in CA. At $0.12 per kwh (the national average as of April, 2009), the cost of electricity for fully recharging an AccuEvolution C 1000 times is slightly less than $0.65.
4A. One 10,000mAh AccuEvolution D vs 1000
.....
. NET PROJECTED SAVINGS = $2077.46..
Savings vs lithiums is even greater than for alkalines.
PROJECTED COST USING D ACCUEVOLUTIONS:
Over the course of 1000 full discharge/recharge cycles, one 10,000 mah AccuEvolution 'D' can deliver 10,000,000 mAh of power (12 kwh).
-
At a cost of $10 per battery plus $1.44 in electricity* for a lifetime of recharging, this AccuEvolution delivers 10,000,000 mAh of power at a total cost of $11.44.
To compute total cost of using an AccuEvolution with a different battery and electricity price than shown in example, please see 'Doing Your Own Computations' below.
PROJECTED COST USING D ALKALINES:
In general use, it takes 1000 non-chargeable alkaline batteries (10,000 mah each) to deliver the same amount of electricity as one AccuEvolution discharged and recharged 1000 times.
-
At a cost of $1.98 per alkaline battery, your cost for 10,000,000 mAh of power using alkalines would be $1980 in batteries plus $108.90 tax (based on national average of 5.5%) - for a total cost of $2088.90.
- Total cost per 100,000 mAh = $20.89 (vs $0.11 for an AccuEvolution).
To compute total cost of using alkalines with different capacity and/or price than shown in example, please see 'Doing Your Own Computations' below.
ESTIMATED SAVINGS, ACCUEVOLUTION vs ALKALINES: $2088.90 - 11.44 = $2077.46
We're confident that no D battery of any type or brand can surpass this cost performance.
4B. One AccuEvolution D vs one NiMH LSD/other brand
....
.NET PROJECTED SAVINGS = $1476.85..
Lower ACTUAL capacity & longevity of other brands makes a big cost difference over time.
EXAMPLE A: AccuEvolutions have a higher verified capacity than most brands of size D Low Self Discharge batteries. A highly marketed D Low Self Discharge battery on sale for $7.40 each was tested and found to have a capacity of just 7930 mah - rather than the stated 8000 mah. If this cheaper battery actually lasted through 1000 cycles, it would have a lifetime capacity of just 7,930,000 mah, which is 2,070,000 less than an AccuEvolution rated at 10,000 mAh per cycle. This amounts to an estimated lost savings of $432.40 , the equivalent of 207 alkaline batteries (10,000 mah) at cost of $1.98 per alkaline plus 5.5% tax
EXAMPLE B: A significant number of the D Low Self Discharge batteries on sale for $7.40 exhibited serious defects, such as excessive heat generation and rapid self discharging. Lets assume, perhaps optimistically, that these batteries last for an average of 500 cycles (vs around 1000 cycles for a higher quality battery). The cost of 500 fewer cycles amounts to an estimated lost savings of $1044.45, the equivalent of 500 alkaline batteries (10,000 mah) at cost of $1.98 per alkaline plus 5.5% tax.
ESTIMATED SAVINGS LOST BY USING OTHER BRAND: A + B = $1476.85The clearance price for other battery is generally around $2.50 less than BearWobble's everyday price for an AccuEvolution.
4C. Doing your own computations -
Projected cost of using D alkalines with DIFFERENT battery capacities and/or prices:
10,000,000 X actual cost of one D alkaline / actual mAh capacity of one D alkaline.
Projected cost of one D AccuEvolution over the course of 1000 cycles - with DIFFERENT prices per battery and/or and DIFFERENT cost of electricity:
12 kwh X actual cost per kwh + actual purchase price for one D AccuEvolution.
* Electricity rates in the US range from about $0.06/kwh in WV to $0.1523/kwh in CA. At $0.12 per kwh (the national average as of April, 2009), the cost of electricity for fully recharging an AccuEvolution C 1000 times is slightly less than $1.44.
5A. One 200mAh AccuEvolution 9V vs 1000 Alkalines
NET PROJECTED SAVINGS = $2081.12..
Savings vs lithiums is even greater than for alkalines.
PROJECTED COST USING 9V ACCUEVOLUTIONS:
Over the course of 1000 full discharge/recharge cycles, one 200 MaH AccuEvolution '9V' can deliver 200,000 mAh of power (0.24 kwh).
- At a cost of $7.75 per battery plus $0.03 in electricity* for a lifetime of recharging, this AccuEvolution delivers 200,000 mAh of power at a total cost of $7.78.
- Total cost per 100,000 mAh = $3.89.
To compute total cost of using alkalines with different capacity and/or price than shown in example, please see 'Doing Your Own Computations' below.
PROJECTED COST USING 9V ALKALINES:
In general use, it takes 1000 non-chargeable alkaline batteries (200 mAh each) to deliver the same amount of electricity as one AccuEvolution discharged and recharged 1000 times.
- At $1.98 per alkaline battery, your cost for 200,000 mAh of power using alkalines would be $1980 in batteries plus $108.90 tax (based on national average of 5.5%) - for a total cost of $2088.90.
- Total cost per 100,000 mAh = $1044.45 (vs $3.89 for an AccuEvolution).
To compute total cost of using alkalines with different capacity and/or price than shown in example, please see 'Doing Your Own Computations' below.
ESTIMATED SAVINGS, ACCUEVOLUTION vs ALKALINES: $2088.90 - 7.78 = $2081.12
We're confident that no 9v battery of any type or brand can surpass this cost performance.
Special note: The AccuEvolution '9v' is a compact, cost-effective powerhouse whose voltage is about 7 times greater than for a D, C, AA, or AAA. In terms of watts (amps x volts), one 200 mAh AccuEvolution '9v' battery delivers approximately 88% of the power as two AccuEvolution 800 mAh AAA batteries.
5B. One AccuEvolution 9V vs one NiMH LSD/other brand
.NET PROJECTED SAVINGS = $1211.56..
.Lower ACTUAL capacity & longevity of other brands makes a big cost difference over time.
EXAMPLE A: A highly marketed '9v Low Self Discharge battery on sale for $4.49 each was tested and found to have a capacity of just 184 mah - rather than the stated 200 mah. If this cheaper battery actually lasted through 1000 cycles, it would have a lifetime capacity of just 184,000 mah, which is 16,000 less than an AccuEvolution rated at 200 mAh per cycle. This amounts to an estimated lost savings of $167.11 , the equivalent of 80 alkaline batteries (200 mah) at cost of $1.98 per alkaline plus 5.5% tax.
EXAMPLE B: A significant number of the 9v Low Self Discharge batteries on sale for $4.49 exhibited serious defects, such as excessive heat generation and rapid self discharging. Lets assume, perhaps optimistically, that these batteries last for an average of 500 cycles (vs around 1000 cycles for a higher quality battery). The cost of 500 fewer cycles amounts to an estimated lost savings of $1044.45, the equivalent of 500 alkaline batteries (200 mah) at cost of $1.98 per alkaline plus 5.5% tax.
ESTIMATED SAVINGS LOST BY USING OTHER BRAND: A + B = $1211.56
The clearance price for other battery is generally around $3.50 less than BearWobble's everyday price for an AccuEvolution.
5C. Doing your own computations -
Projected cost of using 9V alkalines with DIFFERENT battery capacities and/or prices:
200,000 X actual cost of one 9V alkaline / actual mAh capacity of one 9V alkaline.
Projected cost of one 9V AccuEvolution over the course of 1000 cycles - with DIFFERENT prices per battery and/or and DIFFERENT cost of electricity:
0.24 kwh X actual cost per kwh + actual purchase price for one 9V AccuEvolution.
* Electricity rates in the US range from about $0.06/kwh in WV to $0.1523/kwh in CA. At $0.12 per kwh (the national average as of April, 2009), the cost of electricity for fully recharging an AccuEvolution 9V 1000 times is slightly less than $0.03.
* NOTE: The estimated cost of electricity for recharging in all examples above does not include the normally small amount of electricity consumed by the battery and charger in the recharging process. If using AccuEvolution batteries and an efficient charger (such as a AccuPower or Vanson), the cost of this additional electricity over the course of 1000 recharges approximates $0.01 for the 9v AccuEvolution, $0.05 for the AAA AccuEvolution, $0.13 for the AA AccuEvolution, $0.26 for the C AccuEvolution and $0.58 for the D AccuEvolution. Less efficient brands of batteries and chargers will consume considerably more electricity during recharge.
AccuEvolution SPECS
MEET TODAY'S HIGH PERFORMANCE, Low Self Discharge, Non-Toxic, Pre-Charged NiMH rechargeable batteries by AccuEvolution. UNSURPASSED PERFORMANCE, SAFETY AND ECONOMY for cameras, strobes, wireless, digital, high drain devices, fast charging, commercial and general use.
AccuEvolution comes in ALL 5 SIZES: 9v, AAA, AA, C and D. Just 1 can replace AND outperform 1000 or more lithium and alkaline batteries, and other brands of NiMH rechargeable batteries.
Today's highly advanced AccuEvolution replaces the highly successful Low Self Discharge NiMN batteries pioneered by AccuPower several years ago - the Evolution and the AccuLoop.
BearWobble.Com is pleased to consistently offer the best prices anywhere on all Premium, High Performance AccuEvolution NiMH Rechargeable Batteries. Bearwobble ships fast and always factory fresh. Never 2nds or overstock.
As you review and compare specs, performance and actual costs for all the premium, standard and economy brands , we hope you will gain a better understanding of what attributes to look for in a really good rechargeable battery .
AccuEvolution: The basics.
- Lower Internal Resistance of an AccuEvolution (about 50% of other brands) means that minimal STORAGE CAPACITY or POWER is wasted on highly destructive heat.
- Advanced sulfonated polyolefin separator - the technology that enables AccuEvolution to deliver more capacity and lower self discharge;
- High quality voltage: No spikes. Little degradation during use and discharge;
- Lower Self Discharge rate: Average capacity retention after 48 months is about 50% for an AccuEvolution vs 12 months or less for other LSDs;
- More USABLE POWER and STORAGE CAPACITY - due to AccuEvolution's ultra low internal resistance (high efficiency), high verified storage capacity (in mah), very low self discharge, high-quality voltage, and a very high percent of discharge/recharge completion on each cycle. Unfortunately, some brands exaggerate storage capacity or 'juice' capacity ratings by weakening the walls and discharge separators - which increases the self discharge rate and reduces the safety, efficiency and longevity of the battery. AccuEvolution doesn't play this game.
- Severe Weather: AccuEvolutions are safe and ready to go in frigid or hot climates;
- AccuEvolution: Time-tested quality, performance, durability, longevity. Stands up to heavy use, high drain, fast charging, more recharge cycles;
- Easily verifiable specs - printed on each AccuEvolution battery, validated by consumer testing, shown below;
- Potential saving from just ONE non-toxic AccuEvolution: Up to $2082.65 over alkalines; up to $1486.85 over other rechargeables. Just one can replace AND outperform over 1000 lithium or alkaline batteries, and other brands of rechargeable batteries. Good for your wallet, your devices, your kids, pets and environment . Cost analysis for each battery shown below.
AccuEvolution - the battery of choice by emergency responders, photographers, households and professionals worldwide.
.TECHNICAL INFO, APPLICATIONS, WARRANTY
AccuEvolution specs are printed on each battery. Don't you wish everybody did?
Superior performance for -
| Cameras, audio, video equipment |
Solar & wireless |
Digital & high-drain devices |
| Emergency & medical equipment |
Motorized devices |
GPS, strobes & flashlights |
| Radios, walkie talkies, television |
Clocks & remotes |
Alarms, personal appliances |
| Computer & phone peripherals |
Extreme weather |
Heavy duty & general use. | Rapid discharge and recharge.
See Special Advisories section below.
Verified Storage Capacity: Nominal ratings in milli amp hours.
9v = 200 mAh each; AAA = 800 mAh each; AA = 2,200 mAh each; C = 4,500 mAh each; D = 10,000 mAh each.
C Rating (discharge or discharge rate).
The storage capacity for AccuEvolutions (shown above) was measured at the standard discharge rate (C rate) used for establishing the normal, nominal capacity of NiMH batteries, which is 0.2.
A 'C rate' of 0.2 is the equivalent of a 2200 mAh AA battery charging or discharging 440 mA for a period of 1 hour (or 2200mAh for 5 hours) or a 10,000 mAh D battery charging or discharging 2000 mA for 1 hour (or 10000mAh for 5 hours). A ' C rate' of 0.2 represents fairly typical usage. Batteries become less efficient and waste more energy to heat as the C rate is increased.
In comparison, a C rate of 1 is the equivalent of a 2200 mAh battery providing 2200 mA for a period of 1 hour or a 10,000 mAh D battery providing 10,000 mA for 1 hour. A ' C rate' of 1 is a very fast charge or discharge rate. Low quality batteries are very inefficient at high C rates, and may overheat or explode.
Voltage Quality & Stability.
Very high voltage quality. Maximum compatibility. Maintains constant voltage under load and throughout each RENEWABLE discharge cycle. No dangerous spikes.
Nominal Voltage: Sizes D, C, AA, AAA = 1.2v. Size '9v' = 8.4v.
See more info under 'Special Advisories' section below.
Chemistry/Technology.
Latest Nickel Metal Hydride (NiMH) Ultra Low Self Discharge technology. Non toxic. Very low internal resistance.
Ultra High Efficiency = Low Internal Impedance (resistance)
This translates to little energy wasted on heat, more usable power, less recharging required, less wear on battery, greater safety and longevity. Internal impedance for AccuEvolution batteries is about 50% of other NiMhs. Internal impedance below is provided by AccuEvolution and computed in charged state at 1000Hz.
AAA - less than 35 milli-ohms. AA - less than 22 milli-ohms. C - less than 12 milli-ohms.
D - less than 7 milli-ohms. 9V - less than 420 milli-ohms.
Self Discharge Rate - for charge retention and shelf life.
Ultra low self discharge rate - 2% or less per month at room temperature. Capable of retaining charge for several years at room temperature while idle (typical half life without refrigeration - about 48 months). Highly appropriate where readiness is required.
Rechargeability
In general use, may be recharged over 1000 times with no memory effect. Withstands rapid charging and high charge amperages much better than other brands. No special charger required, but a good 'smart' charger will optimize safety and performance.
Rapid Recharging: High amperage processed safely.
Delta V for 9v = 35mV; all others = 5mV. This data is printed on each AccuEvolution battery.
AAA - up to 800 mA (full recharge time, approx 1 hr). AA - up to 2100 mA (full recharge time, approx 1 hr)
C - up to 2000 mA (full recharge time, approx 3 hrs). D - up to 2000 mA (full recharge time, approx 5 hrs).
9v - up to 60 mA (full recharge time, approx 4 hrs).
Standard Recharging: Good speed to amperage ratios. Long life.
Full recharge time at these amperages is approx 12 hrs. This data is printed on each AccuEvolution battery.
AAA - up to 80 mA. AA - up to 210 mA. C - up to 450 mA. D - up to 900 mA. 9v - up to 22 mA.
Limited Retail Warranty - backed by AccuEvolution, USA
These AccuEvolution batteries are manufactured to the highest standards and electronically tested prior to shipment. Should any AccuEvolution battery leak, swell, or become inoperative within 12 months of purchase, buyer may return same to AccuEvolution or Seller for replacement. An RMA number and instructions must be requested and obtained from AccuEvolution or Seller before returning battery.
Not covered by warranty
Neither Manufacturer, Distributor, nor Seller is responsible for any injury or damage that may be attributed to this product. Excessive heat, pressure, vacuum, moisture, chemical exposure, physical alteration, dead shorting, a faulty charger, overcharging or reverse polarity charging may damage your AccuEvolution batteries and nullify your warranty.
.GENERAL INFO - BATTERY TYPES, CHARACTORISTICS
Low Self Discharge - a major attribute of a great rechargeable.
Comparisons and clarifications:
- A Low Self Discharge battery should self discharge at a MAXIMUM rate of around 4% per month at room temperature, and stay charged at LEAST 2 years - without refrigeration.
- AccuEvolutions are of the Ultra Low Self Discharge variety, self discharging at about 2% or less per month at room temperature during the first 12 months, and even less thereafter. A typical, fully charged AccuEvolution will retain operational charge for over 6 years without refrigeration. Typical half life without refrigeration is about 48 months. This ultra low self discharge rate translates to far greater readiness, less frequent recharging, less energy waste, less battery wear, and superior longevity.
- Batteries claiming to retain charge for 'up to 12 months': A NIMH battery that self discharges in 12 months or less is clearly NOT a Low Self Discharge battery. Such battery is either a low end LSD or the older type of NON LSD battery (see below) that requires refrigeration to retain charge for any significant time.
- Non LSDs: This older type of NiMH battery typically loses about 20% of charge within 24 hours of charging, then self discharges at a rate of 15% to 30% per month thereafter. Some (marketed as high capacity batteries), show a somewhat higher storage capacity than the LSD type. Because non LSD batteries leak energy quickly, the USABLE storage capacity of such batteries is greatly overstated.
Precharged. Is it simply marketing?
Almost any battery can be marketed as 'pre-charged'. If your priority is a battery that COMES charged and STAYS charged, select a NiMH battery with a low self discharge rate that you can verify. If the self discharge rate is not verifiable, is not 4% or less, is not printed directly on the battery and the manufacturer's website, and is not measured at room temperature - you are likely getting a pre-charged battery that will NOT stay charged.
All 5 sizes: 9v, C, D, AA, AAA -
AccuEvolution delivers the real-world savings and high performance you want for all your gear - not just AA & AAA devices. AccuEvolution high capacity Cs and Ds provide lots more power at a much lower cost than AAs or AAAs put into C and D adapters.
AccuEvolutions deliver constant, high quality voltage.
No dangerous spikes. Virtually no drop, even under heavy load. No power fade during discharge.
AccuEvolutions = Very low internal resistance (impedance).
This translates to less heat, very high efficiency, more usable power, greater safety, less charging and energy waste, longer life.
The highest standard for rechargeable batteries.
AccuEvolution is proven worldwide for performance, consistency, efficiency, versatility, reliable specifications.
What is heavy duty vs general use?
Established as a guideline to aid in the use and care of your Low Self Discharge NIMH batteries.
Heavy duty use:
- Fast discharging - at a rate of 30% or more per hour of the battery's stated storage capacity.
- Fast recharging - at an amperage greater than that shown for standard charging by the manufacturer.
- Deep discharging (permitting battery to fully discharge).
General use:
- Standard discharging - at a rate of less than 30% per hour of the battery's stated storage capacity.
- Standard recharging - at an amperage equal to or less than that shown for standard charging by the manufacturer.
- Recharging battery before it is fully discharged.
What about Lithium, Alkaline, NiCad Batteries?
Alkalines are readily available, have a low initial price, have a long shelf life and capacity similar to many NiMH batteries. Major drawbacks are that they lose voltage under load and over time, which has a huge impact on performance.Their high internal resistance translates to heat, high energy waste, fast battery wear, and a tendency to heat and swell when placed under heavy load. For these and other reasons, alkalines are not the best choice for digital and high drain devices. Being non-rechargeable, alkalines are quite expensive in the long run.
Lithiums are light weight non-rechargeables, usually available in AA, AAA, and '9v' sizes plus 'coin' type batteries. They have more shelf life than alkalines and capacity similar to regular NiMH batteries (sometimes higher). AAs and AAAs come in 2 voltages - 1.5 and 3.6; accidentally placing a 3.6v battery in a device designed for 1.5v can cause severe damage. The high internal resistance of all lithium batteries translates to high heat, high energy waste, fast battery wear, and a tendency to explode, especially when used in high drain devices. The high initial voltage of all lithium batteries may also damage many common devices. Lithiums are used in the illegal manufacture of meth- amphetamine, causing the sale of these batteries to be restricted in some places. Lithiums are the most expensive of all non-rechargeable AA, AAA and '9v' size batteries with an important niche in 'coin' and custom shape batteries.
NiCad rechargeables are highly toxic, creating considerable risk for kids, pets and landfills. Although durable, they are difficult to properly recharge. Essentially obsolete, their strengths have been eclipsed by low self discharge, non-toxic, NiMH batteries.
Other considerations.
Readiness: AccuEvolutions come partially pre-charged, stay charged, and may be recharged a 1000 or more times in general use with almost no memory effect.
Non-Toxic: A much better choice for our kids, pets, and landfills.
Does any other LSD beat AccuEvolution for capacity, charge retention or durability?
We don't think so, and here is why. The storage capacity of a battery is generally limited by its chemistry and physical size. The sulfonated polyolefin separator that gives a NiMH battery its Low Self Discharge (LSD) capabilities also takes up precious battery space - at some expense to the battery's storage capacity. Increasing the capacity of an LSD requires a smaller sulfonated polyolefin separator, yet there are serious technical challenges to reducing the size or thickness of this separator without increasing self discharge or making the battery fragile and unreliable.
AccuEvolution is a pioneer and leading developer in Low Self Discharge technology and has perfected a durable, highly effective sulfonated polyolefin separator that is relatively small, enabling AccuEvolution to consistently deliver high capacity, low self discharge, and unrivaled durability. New brands of LSDs enter the market regularly, sometimes claiming to match or even exceed the capacity of an AccuEvolution. Given the technical challenges with sulfonated polyolefin separators, lack of credible reviews, and parade of poor imitations, we see no evidence of a battery that beats AccuEvolution for overall capacity, charge retention and durability. Will it be AccuEvolution or someone else who takes the LSD to the next level? Stay tuned.
Reviews and Standings: AccuEvolution is a pioneer and leading developer of high quality, low self discharge NiMH batteries. In an industry short on reliable ratings, reviews, and rankings, AccuEvolution has established a solid global reputation for top attributes, superior real world performance, accurate specifications, and an exceptionally high level of customer satisfaction.
If you have used AccuEvolutions OR other brands of rechargeables, please share your thoughts or comparisons by REVIEWING SOME OF OUR PRODUCTS. No log-in or registration is required; click REVIEW THIS ITEM under the main photo of any product.
Here are some licensees, house brands, trade names, brands and re-brands of rechargeables currently on the market: Amstron, Ansmann, Bower, CycleEnergy,Canon, CTA, Delco , Digital Concepts, Duracell, Enduro, EnduroLast, Eneloop, Energizer, Energyon, Enitime, Fuji, GP/Gold Peak ,GS Yuasa, HiTech, Hybrio, Imedion, Infinium, Insta-Use, Kodak, Lenmar, Maha, MaxE, Maxuss, Merkury, Nexcell, Nikon, North American, Olympus, Panasonic, Pioneer, Powerex , Power Up, R2G, Ready-2-Go, Power2000, ProPower, Rayovac, Recyko, Sakar, Sanyo , SeaLife, Senergy, Sony , Sunpak, Targus, Tenergy, Titanium, Tocad, Uniross , Ultralast, Vapex, Varta, Vivitar, X4 Energy, Yuasa, Zeikos.
AccuEvolution Maintenance
PROPER CARE AND ADVISORIES
Low Self Discharge NiMH batteries are the easiest of all rechargeable batteries to maintain. The information below will help you optimize the life and performance of your batteries.
Initial Use -
For safety reasons, AccuEvolutions are shipped in a partially charged condition. Your batteries may not attain more than 80% of maximum storage capacity until they have been fully recharged several times.
Balking: Occasionally a new battery is reluctant to take a charge, which may lead to the false conclusion that the battery is defective or the charger is not working properly. Balking is a temporary and initial condition that is remedied by 'waking up' the battery with a good 'smart charger' such as the Vanson V-9688. Two remedies if the charger fails to 'wake up' the battery:
1. With battery in charger, turn power off/on several times, then leave in charger for several hours, or
2. Faster/most effective method: Briefly connect (3 or 4 seconds) the balking battery to a properly functioning battery of the same size and chemistry - positive to positive and negative to negative. This may be accomplished with a couple of paper clips.
Deep Discharging -
It is NOT necessary to fully discharge (deep discharge) NiMH batteries before recharging. In fact, there is evidence that the lifespan and performance of a NiMH battery may be compromised by repetitious deep discharging. For maximum lifespan and performance, we recommend that you normally recharge your batteries before they are fully discharged.
Fast Discharging and Recharging -
Fast discharging (high drain use) and fast recharging generates internal heat. Because of their low internal resistance, AccuEvolution batteries generate less heat and are harmed less than other batteries by fast discharging and fast recharging. Because the high quality casing, AccuEvolutions are also less likely to develop leaks and gas off important components when under such stress.
If your need is fast discharging and recharging, then AccuEvolution is your best choice. Just keep in mind that fast discharging and fast recharging maximizes the generation of heat in any battery, and heat takes a toll over time. If you use your batteries regularly in high drain devices, you can reduce the wear and tear by minimizing fast charging.
Recharging -
Especially if you use your batteries in a high drain device (fast discharging), your batteries will benefit from some stress relief with a carefully chosen charger.
Your AA and AA AccuEvolutions may be charged with a standard charger with good safety features, such as the reliable and economical AccuPower Little Buddy AA/AA Charger - a convenient 'must have' for any user of AA and AAA rechargeables.
However, for greater longevity, performance and optimum charging speed, we recommend a good Smartcharger, such as the Vanson V-9688. Besides smartcharging capabilities, you should look for a charger that delivers very reliable voltage regulation, temperature protection, reverse polarity protection, defect recognition, auto float charge, self protection disconnect, and the ability to independently charge from each battery slot at at once.
Fan equipped chargers: Commercial chargers with tightly enclosed battery compartments (typically accommodating 20 or more batteries at a time) are usually equipped with a fan to protect the charger and, to some extent, to protect non-defective batteries from defective ones. Large, fast, fan-equipped chargers are often used in situations (such as initial charging at factory) where battery longevity is not a major issue.
However, fans on household chargers, especially those marketed as 'fast chargers', are not a great idea. These fans have little effect on internal battery heat and could actually harm the battery by reducing the effect of any built-in temperature protection and/or by creating a potentially dangerous temperature differential between the core and the outer portion of the battery. In some chargers, fans may also reduce the overall charging output of the charger.
SPECIAL ADVISORIES -
Voltage.
For a variety of reasons, the optimum 'universal' voltage has shifted from 1.5v to about 1.2v for most devices powered by D, C, AA, and AA batteries. The optimum 'universal' voltage today is generally 8.4v for devices powered by the size '9v' battery. NiMH rechargeable batteries have adapted to this shift, with virtually all brands (including AccuEvolution) operating at or slightly above 1.2v or 8.4v. Alkalines start at 1.5v (or 9v), drop under load and fade to zero during discharge. If considering lithiums, please read article above (Lithium, Alkaline, NiCad batteries).
Claims regarding storage capacity
Some battery producers, online stores and big box stores overlook the importance of adequate and accurately disclosed storage capacity. People buy batteries to store electricity, and we think the storage capacity should be clearly shown directly on each battery, on the website of the battery producer and verified by consumer testing. Beware if any of these specs are sub-par, inconsistent, not verifiable or not available as shown. High storage capacity is of little value unless the battery is truly of the low internal resistance type - otherwise the battery will waste considerable energy on heat. Finally, high storage capacity means little unless the battery has a verifiability low self discharge rate ( 2% to 4% per month at room temperature) - otherwise the battery will waste considerable energy on self discharging.
Counterfeit batteries -
Consequences of counterfeit batteries include overheating, explosion, chemical leaks, under performance, and lost revenue to legitimate sellers and manufacturers. Here are some hints as to how you may avoid counterfeit batteries.
- Avoid batteries whose specs (chemistry, capacity, voltage, self discharge rate, and safe charging speeds) cannot be easily verified.
- Avoid 'plain wrapper' batteries and well-known brands at 'unbelievable' prices.
- Opportunities for counterfeit merchandise increase dramatically when manufacturers fail to properly control their sales network and when retailers become greedy or careless in where they acquire their products.
- Manufacturers with a highly diverse product line and large retailers who carry a wide range of products are most likely to be victimized with counterfeit products.
- If you think you may have purchased any type of counterfeit product, contact the U.S. Consumer Product Safety Commission or call them at 800-638-2772.
AccuEvolutions are sold through a relatively small and controlled sales network. BearWobble follows a no exceptions policy of buying ONLY from this type of manufacturer (or from well established, industry-specific distributors who are highly recommended by the manufacturer).
Select your C and D batteries with special care -
Many brands of size C and D Low Self Discharge batteries are just one or two AAs inserted into a larger case. If it is a 'D' size with a capacity of less than 10,000 mAh OR a 'C' size with less than 4500 mAh, you may be getting AAs or AAAs inserted into a larger case. Such batteries offer considerably less power and capacity than an AccuEvolution and are prone to overheat, leak or explode under heavy load and/or during recharge.
Thinking of using adapters to turn your AAs into 'C' and 'D' batteries? Designers of battery powered devices choose battery size carefully and so should consumers. Consider this before using adapters -
Cs and Ds made from adapted AAs and AAAs require frequent charging, and deplete and wear out quickly.
The actual cost per mAh over time is much higher for Cs and Ds made from adapted AAs and AAAs.
Adapted batteries generate heat which may warp or melt the adapter and damage your device or charger.
Specs, Weight, Freshness and Brand matter
- Make sure your pre-charged batteries have a very low, verifiable self discharge rate - some do not.
- If the specs are sub-par, inconsistent, not clearly advertised, not posted on the producer's website, not printed directly on the battery, or are not verified by consumer testing, don't assume the batteries are up to par or as represented.
- Good NiMH batteries are heavy. If the battery isn't noticeably heavy, it will be noticeably light on capacity.
- Prolonged warehousing may subject battery to heat, cold, and moisture - resulting in serous concealed damage. BearWobble orders frequently, stores at dry/room temperature, and ships only the freshest batteries. Never 2nds, damaged or old overstocked merchandise.
- If it's an AccuLoop or AccuPower Evolution (predecessors to AccuEvolution), it is not fresh merchandise.
- AccuEvolution reliability and performance is proven worldwide. We think the brands that are famous for alkaline batteries still have a lot to learn about rechargeables.
Alarms and certain other devices
Rechargeable batteries tend to operate at full voltage until close to the end of their discharge cycle. Consequently, a low-battery alert on any device will not operate for an extended period of time with a rechargeable battery. Three safety considerations -
- When safety is an issue, always buy top quality alarms, devices and batteries.
- Never use any type of battery against the recommendation of the manufacturer of your alarm or device.
- High or very low battery voltage or defective batteries could impair your device. Regardless of the battery you use, your first line of defense should NOT be a low-battery indicator. You should inspect your devices and the batteries in them regularly (at least twice annually) to insure all batteries are properly installed and charged, and each device is functioning properly.
So called 'Hybrids'
There is no such thing as a part NiMH battery and part lithium, or part NiMH battery and part alkaline, or part lithium and part alkaline. This is purely marketing. If marketed as a 'hybrid', you should check the specs on the battery and on the battery company website to determine what the actual battery chemistry is - alkaline, NiMH, NiCad, lithium, or lithium ion. The actual chemistry is significant to proper use, general safety and overall quality. These specs should also clearly reveal the storage capacity, voltage, self discharge rate and proper charging rates (standard and fast).
Ingestion
Although NiMH batteries are considered non-toxic, no battery is harmless, especially if swallowed or chewed by a child or pet. For more information on this subject > CLICK HERE.
Place of manufacture:
Most products offered here at BearWobble are manufactured in the USA. To the best of our knowledge, no brand of AAA, AA, C, D or '9v' battery (alkaline, lithium, NiMH or NiCad) is manufactured in the USA. The vast majority of all such batteries are now imported from China. The AccuEvolution was engineered and developed in Austria and is now imported directly to the USA from China. Would be nice if they were made here, but they certainly reduce the importation of throwaway batteries and help us save money and energy.
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