Solar Kit

Sence your controller is rated at 30 amps, I would suggest wiring to efficiently be able to add panels if 200 watts isn't enough for your needs. My system is similar in size but the wiring is sized to handle 30 amps at less then 1% line loss. In my set up I believe I will need 300 watts but I am going to try 200 first. good luck with it!!

Say goodbye to generator run times at least for battery charging!

It will do a good job. How it is wired or how you wire it will make the biggest impact as far as how good of a job it does or not.

64thunderbolt wrote:
Just received my kit. 2 100w panels with a 30a pwm controller. Hoping it will recharge my 2 GC2's. I am alone in the trailer and power use is min. Any thoughts?

Wire them in parallel.

Is your PWM charger adjustable for voltage during bulk charge mode? If so, set it for 14.8V in bulk mode.

Mount the Charge controller as close to the batteries as possible, in the closest compartment that won't allow the controller to be exposed of off gassing while charging. 3 to 5 feet of 10 gauge wire from controller to batteries should minimize any voltage loss to 1% or less.


12 ga wire from panels to charge controller should be good for up to 20 amps of solar panel, you are currently at about 11 amps, max.

Perhaps a link to the kit that you bought, so we can see which model charge controller you got? If it's similar to the Amazon version kit, you'll want to scrap that charge controller asap and get something that is voltage adjustable in bulk charge mode to 14.8 to 15.0V for when you want to top charge, which should be daily, especially if you are dry camping for periods over 7 to 10 days in a row.

JiminDenver wrote:
Which kit?

Renogy 200w with 30a pwm

Which kit?