carguy4471
New Member
- Joined
- Jul 3, 2021
- Messages
- 32
Thanks for posting this here! Just bought 2022 Wolf Pup 16 BHS. I am adding (4) 100 watt panels and a Victron 100/30 MPPT with (2) 100 amp Lithium batteries. I would like to use the existing wire and gland from the roof panel. My question to you is removing the existing PWM charge controller. Mine is exactly the same. How hard did you have to pull to get the wires to come out? Did the wire connections come apart? Also how did you identify which wires come from the roof panel and what go to the battery (what colors go where?). It looks like they come up from bottom of the trailer thru your hole. Thanks for any help.
I didn't want to pull too hard. I used a pliers and broke some of the wood away to free up more wire. There are WAGO connectors back there. You can use a small piece of wood after the project to cover up your damage. Just break 3 or so inches away and you'll be good.
Be sure to disconnect battery first. Remove WAGO connectors. With a multimeter on voltage check the wires. When you find voltage you'll have the panel wires. If the number is positive you have your wires + and - correct. If the number is negative you have em hooked to multimeter backwards. Easy! The other two wires are battery. Switch your multimeter to check continuity. Connect one lead to a ground wire (the one that went to battery), connect the other lead to one of those battery wires. If you get the beep for continuity you have you - battery wire. If not, check the last wire. Now you've identified all 4 wires.
I did NOT use the battery wires off the solar charge controller, that ARE too small. I just put a butt connector on them and dropped into the wall. I extended and ran the panel wires around to the front of the storage compartment where I mounted everything including the charge controller. New 8ga wire from charge controller to bus bars.
If you have any other questions at all please ask here or reach out. I'm more than happy to help in any way I can.