Test/Review of Panasonic AA Evolta BK-3HLC 2500mAh (White)

[SIZE=+3]Panasonic AA Evolta BK-3HLC 2500mAh (White)[/SIZE]



Official specifications:

• Nominal voltage: 1.2V
• Minimum capacity: 2500 mAh
• Rechargeable up to 300 times
• Low self discharge, retains 65% after 1 years.

Maximum temperature raise at different discharge currents: 1A:+1,1°C, 2A:+3,4°C, 3A:+5,9°C, 5A:+11,9°C, 7A:+18,3°C, 10A:+21,9°C

This is a high capacity cell from Panasonic, that is not based on Eneloop technology.












These cells has very good capacity and the cells looks to be about equal at any load (good).















[SIZE=+3]Conclusion[/SIZE]

These cells are rated 2500mAh and they have no problem living up to that (they do match some 2700mAh I have tested). The high capacity is probably some of the reason for the lower LSD capacity and moderate cycle count.

They looks like good cells when high capacity is needed.



[SIZE=+3]Notes and links[/SIZE]

The batteries was supplied by CPF/BLF user ChibiM for a review

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

Excellent test review. HKJ! :thumbsup:

Panasonic makes various quality-good Ni-MH cells.

Thanks HKJ!!!

Also a good and proven point, that Panasonic Evolta are not only being produced in China.. as some people may think.
These cells are Japan made.

And these 2500mAh (minimum) are most likely the same as the 2700 (typical) cells sold abroad. Except that these are the latest edition.

HKJ said:

• Rechargeable up to 300 times
• Low self discharge, retains 65% after 1 years.

Click to expand...

From the specs i would say that Eneloop is superior battery. 2100 times rechargeable, retains 85% after 1 years.

Why buy Evolta. Maybe because it is cheaper than Eneloop.

Thanks for the detailed graphs as always.

This is the "high end" Evolta, the same tier level as the Eneloop Pro... which is not rated for 2100 cycles

Maybe because it has got more capacity?

I did a comparison with the Eneloop XX's, and power-wise, they are right up there, except that they beat them in runtime. On lower loads the voltage is a bit lower, but on higher loads the graphis are very close to each other. Maybe you could call this an Eneloop XXX if it's really made in Japan (probably in the same factory). The even lower cycle life and the higher self-discharge is clearly a tradeoff you have to make for the higher capacity. And at this point, the capacity gain isn't that big anymore while the higher self-discharge is noticeable at a bigger jump to the Eneloop Pro's than from Eneloop Pro's to normal Eneloops.

kreisl said:

[/LIST]

From the specs i would say that Eneloop is superior battery. 2100 times rechargeable, retains 85% after 1 years.

Why buy Evolta. Maybe because it is cheaper than Eneloop.

Click to expand...