Energizer Rechargeable AA Nimh Batteries (8 Pack) Review

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(More customer reviews)I had very bad experiences using the previous generation of Energizer 2500mAh rechargeable NiMH cells, because of their rapid-self-discharge problem. This product offer here (Energizer - Rechargeable AA-8PK (NH15BP8)) is actually the NEW version. Energizer has finally discontinued the '2500mAh' series, presumably due to massive complaints. All the new Energizer rechargeable AA cells on the market now are rated at only '2300mAh'.
I have tested four of those new cells, using the Discharge/Refresh function of my La Crosse BC-900 charger/analyzer. Here are my findings:
- Fresh out of the package, those cells hold an average of 330mAh, or just 14% of the full capacity.
- After fully charging them for the first time, they hold an average of 1040mAh.
- After two more discharge/charge cycles, the average capacity improved to 2340mAh
Based on the above observations, I can conclude that those 'New' Energizer cells are just ordinary NiMH cells with lower capacity. They are not the LSD (low-self-discharge) type pioneered by SANYO eneloop. This is very disappointing, because other name-brand battery makers have already introduced LSD products similar to eneloop, such as the Rayovac Hybrid and Duracell Pre Charged. In contrast, the Energizer Bunny simply 'rolled back' its battery technology to circa 2004.
On the new package it also advertises "Charge up to 250 more times". But that's compared to previous generation (2500mAh) cells, which has a lifespan of only 250 cycles. Most name-brand LSD cells are rated for 500 cycles. Sanyo eneloop is even higher at 1000 cycles.
In summary, those so-called 'New' Energizer NiMH cells have capacity just slightly higher than LSD NiMH cells (2000-2100mAh), yet do not offer the advantage of lower self discharge rate. As of this writing, this product is priced much higher than name-brand LSD cells. So it is just a bad deal.
The only positive thing I can say about those 2300mAh Energizer cells is: they _probably_ don't leak as badly as previous generation of 2500mAh cells. But that's not saying much.

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8 pack2500mAh70% more powerCharges up to 1000 timesBest for high-drain devices like digital cameras CD players and handheld gamesLifetime limited warranty

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