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I finally finished the Parking Air Conditioner / 12DC a/c. It surpassed my expectations. I paid $300, got lucky on ebay. These are the ones you see on eBay for $500-800 that run off battery, 12, 24 or 48 volt depending on choice. it is basically a mini split, or more precisely more like your...

Someone suggested get the $30 amp meter. I did and it seems great except one thing, the backlight is on when batteries are not being charged. The backlight originally went off the first day, but now stays on. When charging it does blink every second to show charging, but staying on all the...

I have had this for over a year and never needed it never used it. I mounted it in the trailer, but reading directions now I see it needs the D+ from vehicle ignition. D+ on charger is to be connected to positive 12v from vehicle and that is what turns the charger on. I tried to just connect...

I already have the system built, but wanting to add a monitor. What is the best way to go to monitor SOC of lithium with two systems, can I have one device for this? and sometimes I might connect the two systems together too in the event the fridge batt is too low, or if charging from truck...

I have read a few reviews on this but cannot conclude how it will work for me. Most reviews are van people with poor poorly insulated to no insulated vans, with lots of zero insulated glass that traps heat. These review are useless feedback for me as the van is a fail from the start so, yes, a...

I am building a sliding solar panel with these 100w . The plan is that the top one slides out when parked, when needed, and doubles the solar capture. A 100 w over another 100w, and on both sides of trailer. I have substantial wires inside, so the question is NOT about wires or what wires do...

When the sun is high and the panels are facing the sun power is good. When the sun is low and the panels are facing the sun will power be the same? All assumes 100% clear line of sight to the sun.

I bought this a while back, and just plugged it into a battery. The volt meter shows it outputs 6 volts, then declines to zero over about ten seconds. No return anymore. Is it fixable? The green battery light on controller is on as normal, but no voltage... No solar connected and that...

What exactly do the sellers mean 30A : Tracer7810BP 390W/12V 780W/24VDC ,max pv 100V Can I string panels in series as long as it is below 100 volts? If I go 48 volts, not listed in their statement, the is fine? This for me would be 400 watts in series. The amps would be within spec too.

Do I connect the pos and neg to the center of the bus bar or needs to be opposite ends with 3 parallel batteries. To the center is much much better for me than opposite is why I ask. I know ideal is connect to positive of first battery and to negative of last battery, but with bus bars this...

I finally pulled the trigger on a new ac unit. This is time of year I use camper the least so best time to do renno. I bought one of the truck parking AC units that run off 12v. Much debating about 120 or 12 or 24v and many factors lead to the verdict. There are pros and cons for each one, but...

They call it 50 amps, but I think it is 50 at 80 volts, not 12. So what is it at 12 volts? see pic THe top one says 50, but I doubt those tiny screws and whatever is under plastic will not burn under 50 amps at 12 volts.