Portable Fridge Power
You are packing for a long weekend off grid, and the 12V car fridge is the one thing that must not quit. Food spoils fast once the battery runs flat. This page helps you work out how much stored power a portable fridge needs, and which kind of setup fits your trip.
Small cooler-warmers for drinks and a day out
A 4-litre mini fridge holds about six cans. It can cool or heat, and it suits an office desk, a short drive or a picnic. It draws little, so a car socket can run it. It is not built for a multi day trip with real food. If all you need is cold drinks on the road, this is the simple answer.
All-in-one fridges with a battery built in
The MultiCooler is a 42qt fridge, freezer and ice maker in one body. The retailer says it gives up to 3 days of cooling on a single battery, and that it uses an LFP battery. That makes it a tidy choice if you want one box and no separate power bank to wire up. It suits weekend campers who value simplicity over a bigger reserve. Treat the three days as a best case, since heat, door openings and the temperature you set all change it.
Some bundles add more power. One pairs the fridge with a B70 battery pack. Another adds the B70 and a 200W solar panel, so you can top up in daylight. These suit anyone who expects to stay past day three or camp without a hookup.
The AC180T bundles: fridge plus a power station
The MultiCooler+AC180T pairs the fridge with a separate power station. That gives you a bigger reserve, and the station can also run other things like a phone, lights or a laptop. It suits a family trip where the fridge is one of several loads. The version with a 200W solar panel adds a way to recharge in camp. Check that your panel space and sun hours match the trip.
FridgePower: a battery-first system
FridgePower is sold as a base unit you build on. The larger kits list 2,016Wh, 1,800W output, LiFePO₄ cells and a 1,200W car and solar dual charger. That is a lot of stored energy for a fridge, and it leaves room for other gear. The kit with Charger 2 and a DC Hub suits people who want to charge from the vehicle while driving. The version with the 200W panel also covers charging at camp. The bare FridgePower is the entry point if you plan to add parts later.
Expansion batteries and multi-unit kits
The BC200 is an add-on battery. Stack one, two or three with a FridgePower and you stretch the run time. Kits with a Display 1 add a screen. Two FridgePower units together suit a group that wants separate fridge and freezer duty. Heavier kits cost more, so only go this far if your trip is long or your group is large. The Charger 2 bidirectional cable is a small extra if you already own the main parts.
For a pair of fridges with extra capacity, look at the double kits.
How to choose
- Start with trip length. The retailer's three days for the MultiCooler is a guide, so add a margin if your trip is longer.
- Check watt hours. Bigger numbers, like the 2,016Wh in the FridgePower kits, mean more time between charges.
- Think about charging. Car, solar or both? A dual charger helps if you drive each day.
- List your other loads. If you also run lights or a laptop, pick a unit with spare output.
- Match size to food. A 42qt box suits a weekend for a few people. A 4-litre unit does not.
Questions people ask
Can I just run a car fridge off the car battery?
Short stops are fine for many setups. Over several days, a separate battery is safer for your starting power. Follow the manuals for both.
Do I need solar?
Not for a weekend. For longer stays without driving, a panel helps keep the battery topped up.
Is a bigger battery always better?
No. It costs more and weighs more. Pick the size that covers your trip with some room to spare.
Why does run time change?
Hot weather, frequent opening and a colder setting all use more power. Pre-chill food at home to help.