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I use my 12 volt roadpro lunchbox cooker for heating up soup or anything else that comes in a can. It will heat up soup in about 15 minutes (uses anywhere from 9 to 11 amps while on, about 4 amps total during the 15 minutes). I also use it to heat up water when I want to eat cup of noodles. I...

I been using swampcoolers for the past 10 years, many times 24/7 on hot days. Never had any moisture problems, nothing inside my van has rusted. For me moisture or dampness etc is a non issue. The only time I ever had moisture problems was when I was using a mr.heater, my windows in the front...

The charge amps are good, I think the battery is very low and since its not getting up to 14.4 volts it means more power is being used than being replaced. Your only going to get up to 14.4 volts if its charging while no loads are being used by the battery. On my system if the controller is...

The bms should be OK, it won't cause any draining of the battery. You mention the weather is hot, the fridge running more than usual. About 3 years ago in very hot weather with the fridge running more, having to run 2 swampcoolers to stay cool and also my roof vent, after about 2 weeks my 240...

you need an AC charger that plugs in to the generator or shorepower and outputs what your battery needs 14.4 volts for lead acid or 14.6 volts for lifepo4. If you have a giant lead acid batterybank you can use a charger like they have in auto mechanic shops but those are large. Here is a...

I only had 1 fire with lithium and it was a lifepo4 cell, I accidentally shorted one out and it punched a hole on the side of the cell. When it went off it was like a blowtorch. Luckily I had a small bottle of water and was able to eventually put it out (actually it ran out of pressure). The...

I think 15 amp fuse is too much for the joytutu fridge. I have the same 26 liter fridge and it maxes out at less than 6 amps when the compressor starts (less than 4 amps after it starts) when used with 12 volts. When I first got it, I had problems running it from my lifepo4 system, if the...

I built a exhaust cover next to the vent and put a 120mm (1 amp) fan to exhaust the hot air from the compressor to the outside of my van. I use a 12 volt dc temp sensor relay (about 12 dollars) . With the relay the fan only comes on when the fridge is on. The fan has been on the fridge going on...

I suspect the battery is probably not being charged fully everyday. Do you have a coulombcounter for your 100ah battery? First thing I would check is to make sure the battery terminals are at least getting up to 14.4 volts during the day. Checking the voltage directly from the battery terminals...

I would just get the 550 watt panel, I get by with a 365 watt panel which keeps my 500 ah of lithium at 100 percent even in winter. Get the 550 watt panel and if you need more power maybe get a smaller panel to augment it. I started with 120 watt, then upgraded to 240 watt, when that wasn't...

For the roof vents I just took the cover off and the solar panels will prevent water from coming in. If you already have roof racks, I would just use those, unless they are flat on the roof they should easily go over any roof vent (minus the cover). On my astrovan I prefer using one large...

Never had any rain come inside even when its raining on the freeway. On the inside in winter I just cover up the exposed areas to keep the cold out. Inside roof vent

Just remove the covers from the roof vents and place them under the panels. The panels will keep the rain out. Thats how I been using my roof vent for the past 10 years, never had any rain come in my van. Doing it that way you don't have to raise the panels any higher. Picture of my 14 inch...

the actual voltage of the panel is 37.7 volts. That might be too much for your battery pack. It probably needs one of the smaller 21 volt panels (120 watt or similar) . The suntan panels when used at maximun sun will be operating at over 30 volts. The battery pack probably has a built in mppt...

Without being able to read the individual cell voltage you won't be able to tell. Even the coulombmeter will only give you a estimate. But without a coulombmeter, eventually the battery will go to zero, it happened to me several times when I was just relying on voltage to keep track of the...

Running 2 fridges in hot weather will produce even more heat in your van. I measured the heat coming out of the fridge compressor at over 115F, the freezers compressor will be running more, almost constantly. On my van I have one fridge and I had to vent the compressor to the outside with 4"...

The stabilizers run hot, the one I used I have a fan blowing on them if I plan on running more that 2 or 3 amps through them. I never opened one up but I suspect they have a small buck converter inside that can barely handle the rated output. Anything made in china, you divide by half just to be...

one of the small "zerobreeze" AC's use around 200 watts. A 100ah lifepo4 might run it for about 4 hours, then you have to find a way to charge the battery back up to 100 percent. Also a drawback is if you have the AC inside, the 200 watts of heat have to go somewhere. If its hot outside the heat...

10.2 volts is within limits, the minumum is 9.7 volts. You would need a very large high performance battery to keep the voltage anywhere near 12 volts during cranking. One thing to check is what the voltage of the battery is before cranking over. On my astrovan I have a slow cranking problems...

Also sometimes tapping the starter with a tire iron will get it to start, but eventually you need to replace it. This use to happen to me and I had to tap the starter almost everytime, but once even after tapping it , it refuse to start. I went and bought a new (rebuilt) starter and when I went...