Forum Discussion

DiskDoctr's avatar
DiskDoctr
Explorer
Jun 06, 2017

2kw Inverter + 4 GC2 6v batteries = wiring???

I now have 4- 6volt GC2 215 batteries, PD9270 converter charger, and and a ProSine 1800 watt inverter (2800 watt surge) and want to start wiring.

I have a quantity of 2 AWG wire on a spool, a supply of tin clad copper wire ends in various sizes, and a heavy terminal "hammer spike crimper thing"

I would like to add a battery turn off and shunt to measure amps and also be able to measure voltage/charge remaining.

So here's the setup.

1. Four batteries in a row, long sides against each other. Call them A, B, C, D. A&B pair #1, C&D pair #2

2. Two 2 AWG cables for each section to allow higher amps. Ex. two 2 AWG cables between battery A(-) and B(+), and two 2 AWG cables between battery C(-) and D(+), and two 2 AWG cables between B(-) and C(+) to make two sets of series then paralleled together to get 12v "super battery" LOL

3. Two 2 AWG cables from D(-) to one end of shunt and then two 2 AWG cables from other end of shunt to inverter (switch, then (-)) and PD9270 (-)

4. Two 2 AWG cables from A(+) to inverter (+) and PD9270(+)

5. 120v AC line to distribution box (30 amp transfer switch?) and PD9270

It's a little foggy, so I'll stop there and ask for input ;)

Wire size, wiring diagram, etc.

Caveat, the PS1800 has built in transfer switch, but I prefer not to use it. Want to keep a separate circuit and/or transfer switch at the 30 amp 120v incoming cable for pedestal/generator.

Help? ;)
  • If you really want to use the full output of the inverter, 2AWG is IMHO to small. I'd suggest 2/0 or even 4/0, especially if the run from the batteries to the inverter is any length. voltage drop can be a killer. just get welding cable, easy to work with, very flexible. etc.
  • How far from the batteries is your inverter going to be? Are you planning on being able to use the full 1800w or less?

About Technical Issues

Having RV issues? Connect with others who have been in your shoes.24,190 PostsLatest Activity: Jan 22, 2025