There's lots of technical info in the panasonic battery thread in this forum, I'd recommend reading it. I can say that I've got a set, and they seem to be working great in my v1.5 lavatube, no issues at all. I also use a
xtar WP2 charger as well, gives a choice of 1A or .5A charge, and a 1A charge gets these guys charged quick, it's an intelligent charger, so it won't over charge them, and if they somehow get way undercharged it has a trickle charge step that most other chargers don't have. Highly recommend the
xtar, for the money, it's the best bet (unless you want to spend twice as much and get a pila). Haven't used the AW's so can't speak on their behalf, but everything in that thread says while the AW's are good, the Panasonics are better...