This reminds me of how turbine aircraft usually start their engines. The battery on these aircraft are used to start the APU (Auxiliary Power Unit) which then s

This reminds me of how turbine aircraft usually start their engines. The battery on these aircraft are used to start the APU (Auxiliary Power Unit) which then starts the main engines. The APU is basically a generator, often in the tail of the aircraft. https://en.wikipedia.org/wiki/Auxiliary_power_unit https://en.wikipedia.org/wiki/Auxiliary_power_unit