I usually end up doing a search on ebay like "6v nimh" and get alot of returns for 1200mah batteries sold by sets of 3 with connectors. I've boughten 2 sets of these batteries now and they're good. I personally have used these for over a year, a friend I fly with also has used them for well over a year. The batteries have powerizer written on them. Shipping included I usually pay $8 a pack.