POS (Piece of ****) ebay 3000W (chinese watts?) PSW inverter (looks like a car sound amp) and using a crappy LA charger from TA.
I suppose I'm being harsh calling it a POS as its worked silently (fan comes on over 400W) for many years. It's just not a UPS so I have to move plugs around when the power goes off and used to use extension cords until I decided to live on the wild side and just flip the main switch off, turn off heavy loads like geysers, pool pump, aircons and fridges then turn the plug on that the inverter is plugged into, then everything in the house works.