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Electrical

Generator Fuel Consumption Calculator

June 4, 2026 by Sam Gorman

Estimate generator fuel use by fuel type, load, run time, fuel on hand, price, and editable efficiency.

Categories Electrical

Inverter Idle Consumption Calculator

November 14, 2026June 4, 2026 by Sam Gorman

Estimate inverter idle watts, Ah per day, battery runtime, kWh, cost, and savings from eco mode or a lower-idle inverter.

Categories Electrical

Inverter Battery Runtime Calculator

June 4, 2026 by Sam Gorman

Estimate inverter battery runtime from Ah, voltage, load watts, efficiency, usable battery percent, duty cycle, and idle draw.

Categories Electrical

Lithium Battery Runtime Calculator

October 10, 2026June 4, 2026 by Sam Gorman

Estimate lithium battery runtime from Ah, mAh, Wh, volts, watts, amps, efficiency, battery health, and usable charge.

Categories Electrical

Battery Pack Series and Parallel Calculator

October 11, 2026June 4, 2026 by Sam Gorman

Calculate battery pack S/P layout, voltage, capacity, energy, cell count, runtime, current headroom, and voltage sag.

Categories Electrical

Battery Cycle Life Calculator

September 13, 2026June 4, 2026 by Sam Gorman

Estimate battery cycle life, service years, lifetime energy, and full-cycle equivalents from DoD, battery size, and daily cycles.

Categories Electrical

Battery State of Charge Calculator

October 13, 2026June 4, 2026 by Sam Gorman

Estimate battery charge from amp-hours used or rested voltage. See remaining Ah, estimated Wh, depth of discharge, and reserve charge.

Categories Electrical

Battery Depth of Discharge Calculator

October 17, 2026June 4, 2026 by Sam Gorman

Calculate battery depth of discharge from total capacity and capacity used or left. See charge remaining in Ah, Wh, or kWh.

Categories Electrical

Battery Bank Amp Hours Calculator

October 18, 2026June 3, 2026 by Sam Gorman

Calculate battery bank Ah, voltage, Wh, kWh, usable energy, total batteries, and optional runtime from series and parallel wiring.

Categories Electrical

Battery Bank Voltage Calculator

October 21, 2026June 3, 2026 by Sam Gorman

Calculate nominal battery bank voltage from one battery’s voltage and the number in series. Add optional capacity and energy details.

Categories Electrical
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Advertiser disclosure: LumenCalculator.com is an independent, advertising-supported calculator site. Display ads may be served by partners such as Google. We may earn revenue from ads. Advertising does not influence calculator outputs.

About these calculators: Tools provide educational estimates based on formulas and common assumptions. Results are illustrative and may not match real-world components, tolerances, and environmental conditions. Verify against datasheets, standards, and professional guidance where relevant.

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