Calculate how long your inverter battery will last based on your power consumption
Calculate how long your inverter battery will last based on your power consumption
Battery capacity in Ampere Hours
Total power consumption in Watts
Battery voltage (typically 12V, 24V, or 48V)
Select your battery type
Knowing your inverter's battery backup time is essential for planning power usage during outages and ensuring critical devices stay operational. This calculator helps you estimate how long your battery will last based on your load and battery type, so you can size your system correctly, avoid unexpected shutdowns, and make informed decisions about upgrades or energy management.
It estimates how long your inverter can power your appliances during an outage based on battery capacity, load, and efficiency.
Enter your battery capacity (Ah), inverter load (Watts), battery voltage, and select battery type to get an accurate backup time estimate.
Use ampere-hours (Ah) or watt-hours (Wh) as specified on your battery label for best results.
Yes, select your battery type to automatically apply typical efficiency values for lead-acid or lithium batteries.
Yes, the calculator works for solar, UPS, and regular inverter batteries, including systems with multiple batteries.
Possible reasons include battery aging, high load, low efficiency, or extreme temperatures affecting battery performance.
Reduce load, use higher-capacity batteries, improve inverter efficiency, and maintain batteries regularly.
Yes, extreme heat or cold can reduce battery performance and backup time. Store batteries in a temperature-controlled environment.
Yes, add up the total capacity of all batteries in your system for a combined backup estimate.
No, all calculations are done locally in your browser and are not saved or shared.
The Inverter Battery Backup Time Calculator determines how long your battery system will provide power during outages. Essential for home backup planning, this tool considers battery capacity, load requirements, and battery type efficiency to deliver accurate backup duration estimates for your power needs.