Can it reliably run a 12V car fridge or CPAP machine without random shut-offs?

Absolutely. We know that outdoor fridges and CPAP machines require stable, continuous power. This unit is engineered with High Surge Tolerance on the 12V DC port, meaning it easily handles the startup surge of compressor fridges without triggering false error codes or shutting down. You can sleep soundly knowing your food stays cold and your devices stay on.