Haig

Oh wow. Thanks for the input. I wondered why there was such a massive difference in price for some makes over others. It must be the wave form. I will see about measuring it with an oscilloscope. Biggest worry is the fridge I guess, lights are fine and everything else has its own internal battery except the fibre router. So i need to check this. I appreciate the efforts in responding guys, many thanks.

Sorry, very short on technical specs. But pure sine wave is not mentioned in the product descriptions nor in the one page manual that came with it. Jry Power Inverter - 4000W The inverter is widely used in business travel, sailing trip, to provide AC 220V power for various electrical equipment, it is also widely used in some areas where the power supply is not normal and is very convenient for people working and living. Specification: Output Voltage: Ac 220V Output Frequency: 50Hz Input Voltage: 12V: Dc 10V-15V 24V: Dc 20V-30V Five Protection Functions: - With Over-Load Protection - High Voltage Protection - Low Voltage Protection - Over Temperature Protection - Output Short Circuit Protection Battery Drain With On Ac Load < 0.3A Peak Efficiency>90% Material: Magnesium Aluminum Alloy Shell, Imported Components. What's in the box 1x Power Inverter 1x Connection Cable - Black 1x Connection Cable - Red

It is a JRY Power Inverter. Thats the only detail, I bought it from Takealot. I think it is Chinese...

The Eaton UPS is not critical in my set up. All it does is prevent the need of shutting down the PC when I shut down the house power in order to switch over to the inverter power. It's a manual switch over, not automated...

I have a 4000 W inverter that powers the house mains during load shedding. Runs a few appliances and lights and internet no problem. However I also have an Eaton UPS that is meant to keep a desk top PS running and it is fine when the power goes down, it keeps running the PC from battery. However, when I have switched over to inverter power the UPS keeps beeping and stays on battery - for some reason it does not recognise the inverter power even though the fridge, routers and lights are happily running. Any ideas why this is happening? Many thanks for any insights...

Batteries are in parallel and I charge with a 12V 30A Victron charger from the mains when Eskom power is on. Of course I disconnect that when I switch over to battery power on the DB

Hi. I have a 2000w Trail Boss inverter and have been using it with no problems connected to a 12V 105AH battery. Just to run a light or two and the router during load shedding. I upgraded my batteries to 2x 218AH Li batteries. Then I hooked the cable that is a second power source to the house DB (via a selector switch) onto the inverter and slowly brought up the load. Just lights and a fridge and the garage doors and all was well. Then suddenly the power went off. I estimate that I was no more than 1000W load at the time. Now the inverter has a ticking sound and if I plug just single light bulb in the light flickers in time with the tick - 2 or 3 times a second. Any ideas of what has gone wrong here? Many thanks for any advice.

My 2000W inverter was working ok with low loads. I put it into the main board of my house and slowly brought the load up. At less than 1000W (my estimate) the power cut. Now if I just plug a single light into it the light flickers. What has broken in the inverter to make an LED flight flicker?