Hi all, I've not flown for about 8 weeks, work commitments... I know this question has been asked before, don't shoot me down In the Go app I'm getting a warning message "Battery Cell Damaged" I've checked the battery history & for the last few records it's telling me one cell is broken. This battery has only been charged 18 times, it's also out of warranty. All cells are uniform, showing about 3.99 to 4.00v but the last cell is on 3.81v, this is not from fully charged I'm playing with the sim app at the mo hence why the voltage is lower. I've also drained the battery down & recharged but still getting the same error message Am I right by thinking this battery is now knackered or is there something else I can try? Any help would be much appreciated.