Wow,I have had 3 of the Venom pro 2's and sold one with a RTR truck 2 months ago. I use them from once a week, to several times a week. Other than the typical fan chirping when cold, a known issue with these, their working great. On a lipo 4.2per cell is the top or max. Time for a different charger. If you go the I charger route, make sure it's not a knock off one. Someone can point out how to tell I think.

Glad you were cautious when charging!