KD4UPL
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Joined 17 years ago
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Re: Hard sided campers under 1500lbs with 6' int ht spreadsheet.
There is no 90% rule. Dry weight likely won't include a battery or propane. Many vehicles post the tow rating assuming an empty vehicle. When you start loading people and gear it reduces the tow rating. Check tbe fine print in your manual.1.3KViews0likes0CommentsRe: add another MPPT
Magnum also makes a 100 amp controller, the PT-100. They will communicate when used in multipole. Usually just adding multiple controllers will work but they work better if networked. As for getting 200 amps into a battery, it needs to be capable of accepting that much current. As it charges it will take less and less charge.1KViews0likes0CommentsRe: Onan Generator
I always used a 1,500 watt heater on my 2.5 kW Onan. If you have a 4.5 kW a single electric heater is probably fine. If you have a 5.5 kW or larger I'd use 2 electric heaters. You really should have an electric heater anyway. They're only about $25 and can save a lot of propane if you camp much in cold weather. I always run the electric heater on the camp grounds power that I'm paying for anyway instead of using up my propane.976Views0likes0CommentsRe: Solar panel
Okay, a 2.5' square panel can do some actual good. The little 12" square ones and smaller are basically worthless. Yours is good enough to keep a small change on a a small system but don't expect it to run large items. You should have a charge controller somewhere, hopefully with a display. If there is no charge controller then it's possible the panel isn't even hooked up. If it is hooked up with no controller it could potentially overcharge your battery. If there's no display on a controller to show watts, amps, or volts then you need a way to read battery voltage. A portable volt meter will work or you can buy a panel mount voltmeter and install it. If you have greater than about 12.7 volts your are charging the battery. A good charge would be up above 14 volts. However, voltage is a poor way to tell what is happening. It's possible for a load to be using more power than the solar panel is producing. You could easily have low and dropping battery voltage even thought the panel is producing really well. Getting a good battery gauge with a shunt will show you amps in and out of the battery but again, a load could make it show negative even though the panel is contributing. This is why a controller, showing actual watts or amps produced is so valuable. If your controller doesn't have a display you may be able to purchase an optional display for it. Post back if you can find the controller and what model it is.1.4KViews0likes0Comments
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