PREDICTIVE PRECONDITIONING OF AN ELECTRIC AIRCRAFT BATTERY SYSTEM

There is disclosed in one example an apparatus, including: a hardware platform including a processor and a memory; and instructions encoded within the memory to instruct the processor to: receive stored performance data for an aircraft battery (120), the stored performance data including data that correlate power density to temperature and remaining charge; simulate a planned flight for an aircraft, including predicting a plurality of temperature and remaining charge values; and direct operation of a heat exchange apparatus to precondition the battery (120) to a selected temperature before the planned flight.