FREE DEMO

Try It Yourself — Battery Runtime Calculator

Estimate how long your RV battery bank could support a continuous electrical load.

Your Inputs

Ah
%
Represents the portion of the battery bank you plan to use.
W
%
Allows for conversion and other system losses.
Estimated Battery Runtime
14.4 HOURS
≈ 14 hr 24 min
Battery Bank12V • 200Ah
Usable Energy1,728 Wh
Continuous Load120 W

What This Means

At the values entered, your battery bank could theoretically support a continuous 120 W load for approximately 14.4 hours before reaching the selected usable-capacity limit.

Actual runtime may vary due to battery condition, temperature, voltage sag, standby consumption, inverter behavior and other real-world losses.

Planning estimate only. Actual battery performance varies by battery type, condition, temperature, discharge rate and connected equipment. Always verify battery and equipment manufacturer specifications.
This Is Just 1 of 17 Interactive Calculators

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