I have a 4S 6600 35C battery that I use on occasion. Maybe 5 flights on it. I discharged it after flying to 3.8 volts and store in separate bag.
Around the beginning of each month I check all batteries used or not for voltage. A month ago all cells read 3.8 volts. During this month's "Volt Check" The first cell reads 0.00. The other three 3.8 volts. I double checked with 3 different voltage checkers. Same on all.
What could have happened?
What should I do now? It makes me nervous. It's outside in a battery bag now.
Around the beginning of each month I check all batteries used or not for voltage. A month ago all cells read 3.8 volts. During this month's "Volt Check" The first cell reads 0.00. The other three 3.8 volts. I double checked with 3 different voltage checkers. Same on all.
What could have happened?
What should I do now? It makes me nervous. It's outside in a battery bag now.