ORIGINAL: Tall Paul
That's typical of an overheated Lipo.
Sometimes they'll recover, other times not.
How could it have overheated though? It was charged with the included charger. When I installed it in the heli it was cool to the touch, and when the flight was over it was warm, but definitely not hot. It was cool enough that I could hold it in my hand.
BTW I have emailed Helimax, hopefully they'll get back to me tomorrow. I'll keep everyone updated how it goes.