Electrical

Estimate EV charger voltage drop, load voltage, wire heat loss, monthly loss cost, and a voltage-drop-only wire size.

Check panel room for a Level 2 EV charger, including 125% load, breaker size, and a lower setting that may fit.

Estimate shared EV charger amps, kW, overnight kWh, miles added, and whether each car meets your minimum useful current.

Find EV electricity cost per mile, 100 miles, month, year, public charging mix, gas savings, and break-even gas price.

Find the breaker size for an EV charger, or start with an existing breaker to find the safe charger amp setting.

Estimate EV charger wire size, breaker size, ground size, and voltage drop for a Level 2 home charger.

Size an EV charger circuit: breaker, safe charger amps, wire size, charging power, and long-run voltage drop.

Calculate loaded divider voltage, output change, load current, power, and the minimum load resistance for your allowed error.

Find total speaker impedance for series, parallel, or custom groups and check amp load margin and rough power sharing.

Estimate RV battery bank Ah, Wh, usable energy, and battery count for days off-grid, with reserve, battery type, and inverter loss.