solar disconnect switch
I want to install a switch to disconnect my 155w panel from the controller. The regular battery disconnects are so big. Any harm using a small toggle? Or maybe there are smaller disconnects? I looked ...
Forum Discussion
wopachop wrote:
So it sounds like you guys are saying its possible the AGMs died under 2 years because of being undercharged.
Yes the solar controller is cheap. GoPower 30amp Pwm. Max i see at the batteries is about 8amps. No temp compensation.
It is the wfco converter. Previous owner said they would run the genny practically 24/7 while camping. So there is a chance the batteries were never really discharged and hit with a big amp charge. I measured 14 or 17amps from the wfco. But with solar and genny power there is a chance the converter was mostly in float mode?
Plan was to invest in a better solar charge controller. Now im thinking a better converter would be the way to go. Since i only have a single 155w panel i would need much more if i wanted to consider my solar the main charge source.
Other option, like i posted before, is using my RC charger. Thing was like $300. Im trying to figure out if i can make it do a constant voltage equalization charge. If thats the case i can discharge the batts at home and then blast them with a strong charge. My RC charger does have a Pb setting and i can choose 6v. I think you guys told me i want 10% so around 20amps would be ideal?
(the trailer has AGM currently, but switching to 6v)
Max 8 amnps is about right for flat on the roof 155w panel. No problem there.
You can get a fancier controller, but not really needed if you get the 6s. Good idea instead of fussy AGMs that you don't have the instruments to look after.
You need new converter for sure, that can do your 6s. The usual 14.4v converter is unsat for that too. A pair of 6s can take 60 amps easy and that can be done with a 2000w gen. My 75 amper needs the 2200w gen.
Since the 6s want 14.8v at 77F and that is 15.2v at 33F, I like my PowerMax (same as a Randy "Boondocker") adjustable voltage LK model converter so I can do it right in the winter outside. YMMV on that.
The PD is easier to operate with just the CW, but lacks the adjustable voltage, so it is only correct at 77F. How much that matters to your scenario is unknown except to you!
EDIT--you can still get older PowerMax and Boondocker models that do not have the adjustable voltage. Beware! Get that clear with Randy if you go there! The newer "LK" models are not expensive anyway. Eg:
https://www.boatandrvaccessories.com/products/powermax-pm3-60lk-12-volts-60-amp-power-converter-battery-charger-w-led-light
