Inverter Problem: Can't Handle Load But.. Should

driver has it right. If you read the manual on any big inverter, it will tell you not to use feed cables more than 6 ft. Preferably 4 feet and under. The connection terminals limits the gauge wire you can use. The correct wire will be the same size of the connection hole. What's happening is you are suffering a voltage drop when the inverter is put under load. Of course you could use bigger cables, but your connections don't allow it. Position the inverter inside as close as you can to the batteries and shorten the feed cables. Then use an extension cord of the right length to get to the microwave. A 700 watt microwave needs about 1200 watts to start and then drops to 700. Make sure you protect through floor holes with grommets or sealant so the wire don't wear through and short. That's where fires happen.

 

ya I was going to have the shop do it. I can't be bothered worrying about screwing up electrical things. that and if it does burn down, I wasn't the one who set things up.

I hope to have them make the runs shorter too.. should run to under my bunk not up behind the driver's seat where they are now. I donno if the shop did it that way or just some driver, hopefully not the shop!

 

Good to know, ya I'd read that before somewhere... I'll leave it to the shop to make more holes and seal them properly. if they won't, maybe they can get bigger feed cables to work.. but I'll leave it up to them. Thanks.

 

If you head over to a welding supply shop you can get some 0 gauge, high quality cables with ends relatively inexpensively. You can even get high quality connectors put on after they cut you the cable.

 

That's what I would suggest. Except I purchased my 0 GA wire at Home Depot, really reasonable.
Here is a Thread I started almost 2 years ago that deals with installing an inverter.

http://www.thetruckersreport.com/tr...313-installing-a-power-inverter-pictures.html