19 of 24 people found the following review helpful
Go green - best value pre-charged rechargeable,
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This review is from: Duracell 2500mAh Pre Charged Rechargeable AA Batteries, 4 Batteries (Personal Care)
These Duracell precharged batteries have a 2400mAh rating which surpasses Duracell's older generation of "precharged / ready to use" cells, which were rated at 1950mAh. So they should last 20-25% longer. They do cost a little bit more than the previous generation, but the extra capacity should be worth it for most people.
The packaging indicates the batteries are made in Japan, so the quality should be good. It is claimed that the batteries will hold 80% of their charge for upto 1 year. The batteries are also guaranteed to "last for 5 years or 300 recharges, whichever comes first". The older 1950mAh batteries were supposed to handle up to 1000 recharges, but I'm not sure how important that is in real applications. Even if you were a heavy user and recharged these every week, you'd still get 6 years use out of them - and save an absolute fortune on the equivalent alkaline cells.
The low self-discharge characteristics of these cells means they can be used in applications where traditional rechargeables would not have worked well - so things like wall clocks, radio-controlled clocks, remote controls should all be fine, along with normal items like wireless mice/keyboards, digital cameras, LED torches and various toys.
The cell capacity (as measured on a BC900 intelligent charger) was over 2500mAh for all 4 cells.
A reviewer on amazon.com thinks these batteries are the same as the new Sanyo Eneloop XX and I agree. If you ignore the plastic sleeve/branding, then these cells physically are identical to the new Eneloop XX. The Eneloop XX is spec'd at 2550mAh typical, 2450mAH minimum and these Duracell cells seem to match that. So buying these might save you £3 - £4 over the Eneloop XX.