powergen1

Simple way of generating 230VAC.

2 x 12V 100Ah AGM batteries - connected parallely 1 x INV15 GreenCell Inverter 12VDC -> 230VAC 3000W continuous/6000W surge power inverter

Results - with two fully charged batteries, 23C room:

• 3.0 kW-rated heater (measured 2.5kW) no problems over 1min

• 1.7 Kw-rated kettle (measured 1.6kW) no problem 5 min boiling water

• Two appliacnes: a fridge and a freezer 14h on one battery; assumed 24-28h on two batteries

• One battery dies quickly, long 12V wires significantly reduce max power, even if claimed to be 600A tollerant.

How to get longer?

• Start a car with 12V acid battery. Once running connect negative then positive wire of AGM batteries. Should run as long as you have fuel (not tested)

Thoughts/random stuff:

• DC relays for changing
• Dont connect AC from battery to grid.!
• Measuring how much battery is left.

Any more questions - drop me a line/comment.