ENERGY STORAGE AND POWER SUPPLY SYSTEM WITH RESERVE MODE AND OVERRIDE

An energy storage and power supply device includes an energy storage unit, an output coupled to the energy storage unit, and a processing circuit. The energy storage unit is configured to store electrical energy. The output is configured to facilitate providing power from the energy storage unit to a load. The processing circuit is configured to selectively restrict a power flow provided to the output by the energy storage unit in response to an operating characteristic of the energy storage and power supply device satisfying a threshold condition.