THESE BATTERIES ARE BY FAR THE BEST!! (if you don't believe check reviews)
ALSO THEY COME PRE-CHARGED!
eneloop is a combination of a rechargeable and a disposable battery the next evolutionary step for batteries into the 21st century. SANYO can ship the batteries to Amazon in an already charged state, without losing its power, because of it very low self-discharge. This means that you are purchasing an already charged battery.
eneloop is as user-friendly as a disposable battery. Once charged, it keeps its charge for up to 6 to 12 months - (90 per cent of the charge after 6 months, 85 per cent after 12 months)
In contrast to a disposable battery, eneloop can be charged up to 1000 times, thus eliminating the waste of 999 disposable batteries.
Using eneloop rechargeable batteries really does pay off. Considering the cost of the eneloop battery, compared to a disposable battery, plus cost for the charger and the energy consumed by the charger, the investment for one eneloop returns easily after a few charging cycles. Now there's an end to this spending.