Understanding RC LiPo Batteries
This section in under going work in the meanwhile there is a great write up here https://www.rchelicopterfun.com/rc-lipo-batteries.html
Please take the time to read and understand this section. Batteries are very dangerous if not cared for correctly and can catch fire or even explode. The most common cause for battery failure is incorrect battery care and over 90% is due to over discharging.