Dual Batteries

[rundovr]

need any fab work I can help out ted and ofcourse no charge for you. but we can make the boxes and use a trickle charger to keep them charged.

[Ampdraw]

I spoke to their tech support on this because I started questioning in my mind those amperage ratings listed on their web site. According to their tech support rep this thing can potentially draw as much as 500 Amps if you're welding up to 3/4", so make sure all the wiring and any type of connectors you use is rated for up to 500A continuous duty.

Also worth mention here, which I didn't see noted on their web site, If you are using the gas tank with this welder it runs in negative ground, if you use this without the gas tank and just the flux core wire it then runs positive ground.

500A and the ability for this to switch between positive and negative polarity makes a pretty big difference. In that case I'd make sure everything that has anything to do with your vehicle electronics system is completely disconnected physically, both positive and negative.

A minimum of 4Ga wire or larger and as absolutely short as possible.

[FallonJeeper]

The most basic setup would be two battery boxes mounted to a board in the back of the TJ with two batteries, connected, with 4 GA battery terminal cable, with the cable connected to the positive on one battery and connected to the negative on the other battery. Note - this system would be independent of the vehicles electrical system. No chance of frying your rig, or draining the battery to nothing.

When you're ready to weld, you connect the clamps of the welder to the appropriate post, one open post + and - on each battery.

For charging you can disconnect the batteries from each other, either by way of a switch or physically disconnecting the cable and put them on a trickle charger. If you can find a 24 VDC charger, you could keep them connected. Load up your batteries the night before you go wheeling and charge them.

Make sure you have the battery boxes secure with good lids. You can get some good ones at RV parts stores. You wouldn't want 24 VDC at 720 AMPS bouncing around in the back of your TJ while wheeling.

Parts needed:

2 batteries. Same type preferred.
2 insulated battery boxes - $9 each - $18 total
1 4 GA universal battery cable - $8
Board and screws to mount the battery boxes. - Probably free if you have something lying around

That little welder looks great, I may learn to weld and get one like that and do a setup like I described above.

[CashMoney]

The most basic setup would be two battery boxes mounted to a board in the back of the TJ with two batteries, connected, with 4 GA battery terminal cable, with the cable connected to the positive on one battery and connected to the negative on the other battery. Note - this system would be independent of the vehicles electrical system. No chance of frying your rig, or draining the battery to nothing.

When you're ready to weld, you connect the clamps of the welder to the appropriate post, one open post + and - on each battery.

For charging you can disconnect the batteries from each other, either by way of a switch or physically disconnecting the cable and put them on a trickle charger. If you can find a 24 VDC charger, you could keep them connected. Load up your batteries the night before you go wheeling and charge them.

Make sure you have the battery boxes secure with good lids. You can get some good ones at RV parts stores. You wouldn't want 24 VDC at 720 AMPS bouncing around in the back of your TJ while wheeling.

Parts needed:

2 batteries. Same type preferred.
2 insulated battery boxes - $9 each - $18 total
1 4 GA universal battery cable - $8
Board and screws to mount the battery boxes. - Probably free if you have something lying around

That little welder looks great, I may learn to weld and get one like that and do a setup like I described above.

you still have to disconnect the batterys in your rig if your going to weld on your own unit.

[XXXXXXX]

You guys are awesome, thanks a lot...

[Denis]

I finally got my second battery, now onto gathering parts for my dual set-up. I've got a red top and a yellow top. I plan to run Red as a staring/main battery, and yellow for winch/accessories, with an isolating relay between them.

[RARECJ8]

you still have to disconnect the batterys in your rig if your going to weld on your own unit.

not so with the premier power welder.