• Best Portable Power Station for 12V Car FridgeA 45-litre 12V compressor fridge uses about 380Wh a day. A 768Wh power station runs one for 1.8 days from the 12V socket. Runtime math for 15 models.
• Best Portable Power Station for Chest FreezerA chest freezer averages about 30W, and a full one stays frozen 48 hours unopened. A 768Wh power station runs one for 21.8 hours. Math for 15 models.
• Best Portable Power Station for Electric CoolerA thermoelectric cooler pulls 50W nonstop, which is 1,200Wh a day and about three times a 12V fridge. Hours per charge for 15 power stations.
• Best Portable Power Station for Full-Size RefrigeratorA full-size fridge needs about 1,200W to start, which rules out 300W power stations. A 1,000Wh unit runs one for about 14.5 hours. Math for 15 models.
• Best Portable Power Station for Mini FridgeA mini fridge averages about 26W because its compressor rests two thirds of the time. A 768Wh power station runs one for about a day. Math for 15 models.