Sam Gorman

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

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

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

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

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

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

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

Estimate battery bank runtime from Ah, voltage, load watts, reserve charge, inverter efficiency, starting charge, and battery health.

Find peak kW from interval kWh, estimate demand charges, check load factor, and test savings from cutting your peak.

Estimate battery size in kWh and Ah, then check how fast your solar panel can refill it on good sun days.