Free tool

RV Power Calculator

Add what you run off-grid and we'll size the battery bank, solar, and power station you need. Then we'll point you to the gear that fits.

1. Add your daily loads

Presets use typical running wattage and realistic daily run-time — tweak any number to match your rig. Duty-cycled gear (fridge, A/C) already assumes on-time, not 24 h.

ApplianceWattsQtyHrs/dayWh/day
Your estimated daily energy use
running watts × hours, plus ~15% inverter/wiring loss
0 Wh/day

2. What we recommend

🔋

Battery bank

Ah

usable @ 12V ( Wh, lithium)

See top battery picks →
☀️

Solar to refill it

W

to replenish a full day in 5 sun-hours

See top solar kits →

Or a power station

Wh

grab-and-go class for this load

See top power stations →

Protect it all: any battery/solar setup on shore power needs a surge protector / EMS at the pedestal, and most rigs need an inverter to run AC appliances off the bank.

Surge protectors & EMS →  ·  Inverters on Amazon →

These are planning estimates to get you in the right ballpark, not engineering specs — size up if you run a residential fridge or A/C often, and confirm wiring/fusing with the gear maker. This page contains affiliate links; as an Amazon Associate we earn from qualifying purchases, at no extra cost to you.