They're fine batteries. Just AVOID the 4000mAh Flightmax 2s Hardcase ones. Those are ok if your application won't demand more than 50-60A continuous, but the terrible soldering makes them far below their rated "100A". Stay away from those and you should be fine. I ordered 6 packs and ALL 6 packs opened circuited.
Last edited by jsr; 04.25.2009 at 05:21 PM.
Reason: Fixed from 4s to 2s.