Test/Review of Powerex AA 2700mAh (Black)

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HKJ
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Test/Review of Powerex AA 2700mAh (Black)

Powerex AA 2700mAh (Black)
DSC_5623

Official specifications:

  • Capacity: 2700mAh
  • Battery size: AA
  • Voltage: 1.2V
  • Dimensions: 14.4mm (Diameter) x 50.0mm (Height)
  • Cycle count: 1000


Powerex%20AA%202700mAh%20(Black)-info

Maximum temperature raise at different discharge currents: 1A:+1,4°C, 2A:+3,4°C, 3A:+5,9°C, 5A:+11,7°C, 7A:+17,6°C, 10A:+20,5°C
This is high capacity AA rechargeable batteries, but the rating is on the optimistic side.

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Powerex%20AA%202700mAh%20(Black)-Capacity

The two cells has very good tracking and do also handle high current fairly well.

Powerex%20AA%202700mAh%20(Black)-CapacityTime

Powerex%20AA%202700mAh%20(Black)-CapacityTimeHours

Powerex%20AA%202700mAh%20(Black)-Energy

Powerex%20AA%202700mAh%20(Black)-PowerLoadTime

Powerex%20AA%202700mAh%20(Black)-CurrentTest

Powerex%20AA%202700mAh%20(Black)-Charge



Conclusion

It looks like good batteries with high capacity, but the difference from 2500mAH rated batteries up to these is not very large.



Notes and links

The batteries was supplied by Danaco for review.

How is the test done and how to read the charts
Compare to other AA/AAA batteries: Alkaline/NiMH/Lithium

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

Edited by: HKJ on 06/18/2014 - 14:13
WarHawk-AVG
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Wow..powerhouse little AA batteries!

Awesome review as always, love those really flat discharge lines at or below 3A, pushing em above that and they seem to strain a little bit

Thanks again HKJ! Noone does it better Smile

Hikelite
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They almost match with Eneloop 2450mAh discharge curve (used the comparator)
I've had a dozen (12) of them and absolutely all of them broke in about 6 month, maybe it was a bad batch.

djozz
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Thanks for the review HKJ, nice to see that these perform so well, they are a fair bit cheaper than Eneloops. 

lagman
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Is this the standard Nimh type which has a high self discharge or is it a compromise like the eneloop pro?

My English isn’t perfect but I’m trying to improve it. If you see something that doesn’t sound right or is just plain wrong, please feel free to point it out! Smile

HKJ
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lagman wrote:
Is this the standard Nimh type which has a high self discharge or is it a compromise like the eneloop pro?

 

Standard NiMH, no LSD here.

My website with reviews of many chargers and batteries (More than 1000): https://lygte-info.dk/

StorminMatt
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Hikelite wrote:

They almost match with Eneloop 2450mAh discharge curve (used the comparator)
I’ve had a dozen (12) of them and absolutely all of them broke in about 6 month, maybe it was a bad batch.

Or a bad charger. I think LOTS of the problems that people have had with non-LSD batteries were due to the horrible, timer based and constant trickle charging chargers that were generally available before LSD batteries became common.

On the other hand, although I’ve had good luck with these batteries, these days, the Duracell Ion Cores seem to equal these batteries in terms of actual capacity and better them in terms of price and availability. They also have some availability, and are believed to possibly be rebadged Eneloop XX.

Without lamps, there’d be no light.

Helios-
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Still a lot of horrible timer based chargers being sold.


Counterfeit 18650s, 2,<a href=“http://

DanielM
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i use these in my Nissin flash, pretty good

Old-Lumens wrote:
I love modding, but I don't have much use at all for flashlights in general.