Put new battery in battery compartment

This exact battery is out of stock, and I was unable to find a replacement. Theoretically any 11.1V 3S battery pack with a Molex Microfit 3.0 connector with the correct wiring (positive, ground, and 10K NTC thermistor connected between the middle wire and ground wire) will work.

Can't find a replacement battery? Don't worry, there is a guide on making an adapter.