Power & Electrical

Honest answer: most car campers don’t need a separate inverter at all – the power station already has a good pure-sine one. Here’s the exact case where a standalone inverter earns its place, how to size continuous vs surge watts, why pure sine, and the battery-cable reality at 2000W and up.

Yes, but the cigarette socket is a trickle – about 100-120W, so hours for a meaningful top-up. A DC-DC alternator charger does the real work at 500-800W and refills a midsize station in a couple of hours of driving. The numbers, the picks, and the smart-alternator catch.

A 200W panel is the workhorse that recharges a midsize power station in a sunny day; 100W keeps small stuff topped up. The catch: you get about 60% of the rated watts in the real world. The sizing math, a panel-to-draw table, four picks, and what to skip.

The compressor brand matters more than the badge. Iceco and Dometic run Secop/Danfoss compressors that sip power and last; the cheap ones cut corners. Four honest picks from buy-once to first-fridge, what actually decides it, and why thermoelectric coolers are a trap.

For most car campers a ~1000Wh LiFePO4 unit is the sweet spot – enough to run a 12V fridge and charge everything for a weekend. Five picks from minimalist to a week off-grid, what actually matters when you buy, and who should skip each one.

Rule of thumb: a 1000Wh power station runs a 12V fridge for about two days, a 500Wh for about one. Here’s the math, a runtime table by power-station size, the DC-output trick that buys back lost hours, and how a solar panel turns days into a whole trip.

The honest answer: about 4-5 amps while the compressor runs, but only around 1 amp-hour per hour averaged out, because it cycles. Real measured numbers from Dometic and Iceco fridges, what drives the figure up, and how to turn it into the battery you need.

Most people buy twice the power station they need. Here’s the one bit of math that tells you the right size: add up your daily watt-hours, multiply by nights, divide by 0.85. Sizing tiers, the solar shortcut, and the mistakes that make people overspend.