They are stick packs like these fellas
http://www.ansmann.de/cms/no_cache/r...%5Bpid%5D=2721
I've thought about Lipo but know even less about those! I bought this charger with the foresight to be able to charge Lipo but if i'm not having much sucess with HiHM i dunno...........i can't check each cell individualy.