Solar batt/inverter wiring option

Van Living Forum

Help Support Van Living Forum:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

tripper

Well-known member
Joined
Aug 10, 2016
Messages
609
Reaction score
36
Location
Tucson AZ
I am wiring up a solar addition to my rig. I am thinking of wiring it differently than standard, I would like some opinions on this (see attached pics).
My solar puts out a max of 85 amps (930 watt) which is close to the max power my inverter can use (1000 watt true). Rather than run the controller wires all the way to the battery and then back to the inverter I was thinking of just running the controller directly to the inverter terminals, since I anticipate the only time I will be needing close to the full 85 amps is when heavily using the inverter; also the wiring runs would be shorter.

Existing install is the inverter which is connected to the battery with 4 gage wiring, this newer solar controller has not had the wiring to the battery installed yet.

Not shown in picture is two additional 15 amp solar controllers that run directly to the battery (existing roof solar (180 watt) and portable solar (160 watt)).

The inverter and solar controller are mounted near each other, I have to punch another hole in the battery box if I wire directly to battery. Battery is a 100 AH LiFePo.

If I wire controller to the battery it will have to be 3 feet of 2 gage wire instead of 1 foot to the inverter.
 

Attachments

  • batt direct.jpg
    batt direct.jpg
    46.6 KB
  • batt direct 2.jpg
    batt direct 2.jpg
    48.2 KB
No, all charge sources should go to House bank.

Inverter will draw from controller directly anyway.
 
if I was going to do it that way I would install 2 Blue Sea bus bars. keep the heavy gauge wire to the batteries but "T" in the bus bars. then run your heavy wire to your invertor from the bus bars. remember hook your batteries first and panels second. when disconnecting disconnect the panels first and the batteries second. highdesertranger
 

Latest posts

Top