Inverters have on / off switchs or control panels. What brand inverter do you have.
The batteries you have aren't the best for deep cycling, but if good, they should run your inverter. They are probably shot but can be tested. They need to hold over 11 volts under a load, otherwise the inverter will shut down.
Best bang for your buck is a pair of GC2, 6 volt, golf car batteries. Because of their popularity, they sell for around $100 in many places. Two, wired in series, will give you 12 volts with a bit more capacity then what you have and much longer life.
If you have a large inverter ( 2000 watts ), you may want 2 sets of the 6 volt batteries, if you have room.
|