ORIGINAL: Tired Old Man
For those that don't want to buy a bunch of extra equipment to charge an Eneloop. Plug it into the receiver side of your wall wart radio charger. Low output, designed for charging 400 to 600 mA batteries at about 1/10C.
Problem with that is a 2500 ma battery will never reach full charge. Not enough MaH going into it. New cells need a formation charge at no more than 10% of capacity. This is one of the better battery sites out there and as the name implies no BS!
http://hangtimes.com/rcbattery_faq.html Cheap batteries = cheap performance. Why risk all your investment?