6 volt batteries and an inverter
Hi all, I'm planning on having 2-6 volt batteries with a 300 amp hour rating. Inverter will be 2000 watts. I had read somewhere of low voltage alarms that are possible with this type of setup. It w...
Forum Discussion
If your 2000w inverter's low voltage shutdown spec is 11.0v or less AND you use inverter to battery cables that have less than a 2% voltage drop at your maximum anticipated load, this should significantly reduce your chance of having a problem powering your inverter with 2 GC2 batteries if they're discharged as low as 12.2v (50%).
We power our 2000w Xantrex PSW inverter with 2 GC2 batteries. FWIW, we can power a small 1,500w space heater on high (~140 amps) with 2 GC2 batteries already discharged to 12.2v. Inverter input voltage under this load is approx. 11.2 to 11.1v--just barely above the Xantrex's 11.0v low voltage shutdown voltage. Yes, the low voltage alarm activates, but the inverter does not shutdown. We use 4/0 cable for the 13 ft. battery to inverter cable run which limits our voltage drop at 140a to .15v (~1.4%).
I might add we can power our 1,100w microwave for up to 40 min. with our 2 GC2 batteries before they drop to 12.2v.
We power our 2000w Xantrex PSW inverter with 2 GC2 batteries. FWIW, we can power a small 1,500w space heater on high (~140 amps) with 2 GC2 batteries already discharged to 12.2v. Inverter input voltage under this load is approx. 11.2 to 11.1v--just barely above the Xantrex's 11.0v low voltage shutdown voltage. Yes, the low voltage alarm activates, but the inverter does not shutdown. We use 4/0 cable for the 13 ft. battery to inverter cable run which limits our voltage drop at 140a to .15v (~1.4%).
I might add we can power our 1,100w microwave for up to 40 min. with our 2 GC2 batteries before they drop to 12.2v.
