Last Saturday with 4 min to go before the race started I went to plug the battery in on my stock Slash and the wire broke off the Traxxas connector. While trying to get the terminal out to solder it back on, I broke the other wire off. I got both terminals soldered back on and plugged the battery in and nothing. Upon closer inspection, in my haste to make the race I soldered the wires backwards. I slid the connector apart and put it together properly and still nothing. I figured that connecting it backwards must have blown the ESC.

This morning I was checking things out and found the problem is with the battery. I put a different battery in the car and everything seems fine. The battery is a Tenergy 2s 5200 30c. I hooked the battery to my charger to see if it was dead and I get a warning “battery voltage to high”. I put the charger in balance mode and it reads 4.19v on one cell and 4.51v on the other. If I check the battery with a volt meter it reads about 8.2v, analog not digital.

I thought that if I could drain the battery a little then the charger would balance the cells. I tried to discharge the battery with the charger and get the same error message. So I hooked it to a light bulb and it won’t even light, I hooked it to a motor and nothing. But yet I am reading over 8v.

Anyone have any ideas to try to revive this battery, It is only 3 weeks old.

Thanks
Keith