Solar Kit
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?
Forum Discussion
DAS26miles wrote:
With all this high voltage of 14.8-15V aren't the refrigerators and furnace/thermostat in danger of frying the boards? I was told on the forum years ago to avoid using my generator with both my Intelli power 45amp converter charger and Xantrex 40amp battery charger together as the voltage exceeding 14.5 volts can fry the boards. Falsehood?
No...
Here's why...
14.8V at the controller, with some loss in the wiring to the battery gets you 14.6 or 14.7 at the terminals of the battery. Now add in all the losses getting down the wires to your refrigerator and it's circuit board.
Now most 120W folding portable solar panel kits, like mine, hint, hint, make 14.4V at the charge controller, not 14.8, unless you modify or replace the charge controller with an adjustable one.
Add in some wire from the charge controller at 14.4V to the battery, and you are at 14.2 or 14.3V.
Dometic electronic circuit panels are at risk at or above 15.4V... at the circuit board, so you have plenty of margin, voltage wise.
I have put 15.3V at the charge controller, ended up with 15.0 at the battery, and have never had an issue with my circuit board on my 6 cu ft Dometic fridge. Length of wire from battery to circuit board and v loss makes it a non issue.
