The Inverter will operate from input voltage ranging 10.5 V - 16 V. If the voltage drops below 10.5 V, an audible low battery warning will sound and the voltage indicator will be in the lower red zone. The Inverter will shut down if the input voltage drops below 10 V. This protects your battery from being over discharged.
The Inverter will also shut down if the input voltage exceeds 16 V. This protects the Inverter against excessive input voltage. The voltage indicator will be in the upper red zone. Although the power inverter incorporates protection against overvoltage, it may still be damaged if the input voltage is allowed to exceed 20 V.