I have only owned this battery for 3 years and only charged it 5 times. When I bought it originally it had this problem after the 2nd flight but I just never looked into it. When I do charge it I get the LED Overcharge indicator but I think that is because the highest cell is charged but the lowest is still technically in low battery. Flew it with the warning a few feet above the ground to test it and within a few minutes the lowest cell died in the air causing the drone to drop. I’m surprised even with the other cells charged it shut off but I also know next to nothing about the workings of this battery. I currently have the rapid and standard charger and just tried deep cycling it. Should I just trash it or is there a cheap way to fix it? Also I have a second battery that just won’t charge. It can’t even power the drone for more than a second. Whenever I plug it into either charger I get an over voltage charger warning so I’m just completely confused on that note. Any advice would be nice!