GensTattu

Lipo batteries have used in many ways, like our smart phones, UAVS, cars, computers... I think most people will face a problem: why does my lipo battery using time get shorter and shorter? When you bought a new phone, the first month, you can watch videos, play games, listen to the music for the hole day, but after about 6 month, you may found you just can use it about half one day, as time goes by, you will need to charge all the time. Why? Every lipo battery has its life can capacity, you should often care about your battery, you should avoid over charge or over discharge your battery. What's over charge ? what's over discharge. The mean is you should keep there is at least 20% power in your lipo battery and when your lipo battery is full charge, you should stop to charge. Lipo battery is a memory battery, if you also use over 80%, its battey capacity will get small, and can't come back to the normal value.

Accrounding your description, I think your battery may ruin, are you try to use your battery? 1300mAh 3s lipo battery discharge voltages is 11.1V, does it shows right?