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Battery Backup Time Calculator

Battery Backup Time Calculator





  • Battery Capacity (Ah): Check your battery’s specifications for the capacity in Ampere-hours (Ah).
  • Battery Voltage (V): Look for the voltage rating on your battery, typically in Volts (V).
  • Battery Efficiency (%): Enter the efficiency percentage of your inverter (usually mentioned in the user manual).
  • Connected Load (W): Sum up the power consumption (in Watts) of all devices you plan to run on the battery during a power outage.