Hey Cody, this is the first I have ever heard of Li-Ion packs having problems such as this. I have been using them for years with no problem and using the Fromeco cube ever since it came out. Does your Cube have the Brain card (I think that is what they call it) and if so, what amperage were you charging at. I usually have my packs built with a seperate charging lead and rarely take them out of the plane, be it a jet or big gasser. If the charger survived I would sure check it out before using it again.