November 26, 2025Nov 26 9 hours ago, Piet de Pad said:That is correct, I measured a 1500Wat peak load at startup and my must 1kW 12V hybrid inverter switches over to grid mode when that happens after 18:00. After 4 minutes it switches back to battery mode, but then the compressor is already running and so it will continue to run in battery mode. During the day when I have solar and battery, he doesn't switch and can handle the overload. I believe it's the BMS that is the bottleneck that one blocks due to overload and makes that the Inverter switches.I measured 140A from 14V to start a 225L fridge. This is 1960W although only for a few seconds. I have seen a number of guys with caravans that tried to run their fridges from a 1kW inverter and most inverter just switch off. From a 1.5kW inverter with 2 x rating the same fridges work fine IF you have good batteries.Using a clamp meter you normally will only see power below peak due to the delay to update the display. Edited November 26, 2025Nov 26 by Scorp007
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