I bought the 10 battery smart charger from the website below.
http://www.batteryjunction.com/ch10chsmchwi1.html
I have 4 Wii remotes, a balance board and a camera that takes 4 AA batteries, so I always have enough fresh batteries when each item runs out of power at various times.
The batteries that come with it have been phenominal and way outperform the engergizer rechargeable batteries I have even though they are matching mAh.
The energizer smart charger is also a good option though, as you can charge various battery types.








