01

Fridge duty cycle drives summer use

Ambient temperature, ventilation, door opening, and initial food temperature all affect compressor runtime.

02

Begin near 800Wh for winter nights

A blanket alone can consume most of an 800Wh battery across eight hours, leaving little margin for a fridge.

03

Plan charging for a second night

Vehicle or solar charging can reduce the battery size you need, but real input depends on the car, weather, and installation.