BATTERY HEALTH SELF-TEST PROTOCOL

Provided are a system (100) and method (200) for performing a battery health self-test protocol. Embodiments can include detecting a transport refrigeration unit (TRU) (10) is connected to standby power, and charging the battery (150) to a known charge level during a charge cycle. Embodiments can also include discharging the battery during a discharge cycle by coupling the battery to a battery test resistor, and calculating battery health assessment information for the battery.