Freedom HF 1800 Power Inverter
I have my Xantrex Freedom HF 1800 operating as a battery backup for the sump-pump in my basement. I have a single submersible pump that (according to the inverter) draws about 500 watts continuous while running. (So my startup surge is probably 1000 to 1500 Watts, and my pump runs fine on the modified-sine output.) I have the inverter connected to a Group 27 Marine Deep Cycle battery via a pair of 0 AWG (gauge) wires. Don't go cheap on the battery cables, they need to pass a lot of current with only a very 