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Find my setup

RV and van power calculator

A day in a van or RV: fridge, lights, phones, laptop and TV. Set the days between hookups and your hours of good sun to size the battery and the solar.

Fridge
LED lights
Phone
Laptop
TV

Watts are typical averages; the label on your device wins. Set sun to 0 to size the battery alone.

You use
2,000 Wh
a day
Battery you need
4,706 Wh
2 days, 15% conversion loss
Output you need
220 W
600 W to start the biggest
Solar to keep up
571 W
5 h of sun, panels at 70%

6 stations fit, cheapest first

Anker SOLIX S50005,024 Wh · 4,500 W · 3,000 W solar · 2 days of this load$3,600EcoFlow DELTA Pro Ultra6,144 Wh · 7,200 W · 5,600 W solar · 3 days of this load$4,199EcoFlow DELTA Pro Ultra X12,288 Wh · 12,000 W · 10,000 W solar · 5 days of this load$7,999BLUETTI EP5005,120 Wh · 2,000 W · 1,200 W solar · 2 days of this loadout of stockBLUETTI EP500Pro5,100 Wh · 3,000 W · 2,400 W solar · 2 days of this loadout of stockGoal Zero Yeti 6000X6,071 Wh · 2,000 W · 600 W solar · 3 days of this loadout of stock

Quick answers

How big a power station do I need for this?

About 4,706 Wh of battery for 2 days (2,000 Wh a day plus 15% conversion loss), with at least 220 W of output. 6 stations we track fit; the cheapest today is the Anker SOLIX S5000.

How do you work it out?

Each item's watts times its hours a day gives watt-hours. The battery must hold that for each day without recharging, divided by 0.85 for conversion loss. Solar needed is a day's use divided by the hours of good sun, with panels at 70% of their rating.

We may earn a commission if you buy through these links. It never changes a verdict. How the math works.