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Think of controller as a sink faucet. When your bucket is empty you fill at full faucet flow, when near full you adjust to slow faucet speed until it is full and then you turn off your faucet. lf your bucket has a very small hole in it then you might have the faucet flow or drip at a very slow...

Avoid the flex panels, they would be disaster for moving on n off all the time, will break fast. Yes, 4 100w panels seems your best option. That is good price for 100w 12v panel. I have not researched this brand. Look up EPever on ebay for better prices if you want save a few bucks. I would...

Can you fill a pool with multiple water hoses? Also, please read a few forum post using the SEARCH function as all this is discussed already- before you make a new thread. You can fill a pool with multiple hoses. This answers all of your questions above. Chargers with an equal voltage when...

IDT there is anything special about your panel. Is there? In the end it has one positive wire and one negative wire coming out of it, the same as every other 100w panel. Seems like you provided useless info, or is this info signifiant somehow? The fridge is also useless info, or is it? What is...

You got the answer that you asked. If you want specifics on your particular model and not the general reason why, then need to contact manufacturer or research the details further. Nope, this would be a bad myth and one I never heard. Controllers are more like a light switch here, they can...

RV world is full of garbage. Blows my mind that on a $2,000,000 RV that they use these same garbage AC units and the same garbage noisy vent hood fans....

It is a FACT that it is possible and has happened sometimes, but most of the time, no, no issues will occur. The danger is to the controller itself and not your lack of handling live wires. I advise ALWAYS disconnect the solar panel first before disconnecting the battery (or anything else)...

l think "illegal" is a bit of a stretch for a bicycle.

Agree with the above. The controller runs off of battery power and should not turn off if solar is not present. Solar is not present every day, so there is no logic for it to turn off either. Agree, use "USER" and program in your own charging profile.

Can you just skip the pedal assist and replace with a throttle? I think your project is too specific for a solar forum, and the ebike forum will have people who have done similar things instead. Since you are going external battery then that solves a lot of issues trying to fit something in a...

One option is to take the existing battery to a Battery Store/ repair shop and have them put in all new 18650 batteries. This is a simple task for a battery enthusiast. 18650 batteries are in everything including the tool 12v battery you mentioned. They are the favorite for Tour de France...

I think part of the answer is to swap out the alternating current compressor for a DC compressor so you can run the compressor straight off the battery. This have to be 12v compressor. Then you have a fan that is still alt current, so you still would need , though be it a smaller inverter, or...

Yep, exactly. Most use a switch like this: With this one you can charge either or both or neither. The solenoid or relay option with toggle above will do the same thing too, but just more complicated, and only if you must have a remote toggle switch. They key is that both batts should have the...

The deployable panels were added and the existing ones left alone - as this way I did not have to un-do any existing panel wiring in a tight space. The top panel is the deployable and it is selected to power the front battery because the front batteries panels are under the deployable ones. So...

https://diysolarforum.com/threads/double-stack-solar-deployable-wires.79970/ You can always expand your square footage when parked.... Deployable Panels

I edited previous post: run the solar neg to the bus bar. Run the pos to the switch. Run the switch to either the controller or bluetti. From buss bar run to the shunt or straight to bluetti. The only danger I see you making is not wiring the shunt right and losing information, but no damage...

Looks right**edit... Yes, for yours, run the solar neg to the bus bar. Run the pos to the switch. Run the switch to either the controller or bluetti. From buss bar run to the shunt or straight to bluetti. ** I edit so it makes more sense.... Does your controller have a "light bulb" output...

If you only want a switch, then you just need it to not trip falsely. If panel maxes out at 15 amps, then do not put in a 14 amp breaker. You can put a 20, 30, 100 if all you want is a switch. Breakers make good light switches.... Might as well have a proper sized breaker if you are going to...

Get a second charge controller if you need to, expensive, but ultimately a cheap price to pay to make sure your panels work. Just a hand, a half a hand, covering any part of the panel kills the amps, makes it way lower. Stay away from the shade of the AC unit. Use a "gland" entry point, these...

Instead of lever nuts I would go lugs, copper lugs. Do not solder them, use a crimper or a hammer and a flat head screw driver. Put the cable in, pound with hammer some, use flathead to hammer a slot divit (do not cut) longways in the crimp. The idea is squeeze and make as much copper to...

Dreaming.... They are right, this is a fools errand. Stick with the inverter, they are efficient enough for what you are doing, and I would not get the mindset that every single last watts counts hat much. Use a smaller inverter, the smallest that your items run on, or get two, a small one...

I had a class C with the front half of box, about 7x7 foot area with bed over cab, and the 13.5 AC unit was still over-kill in a 120 degree desert. A 9k would have been plenty for that. When I opened the door and cooled the entire 15 foot box then the 13.5 was still fine. I would put in the...

There is the diode in that little box too, or something. You will have to buy one and make modifications yourself if you want it. Others are right, this is dumb. Im not trying be mean, this is dumb and your reasoning is invalid. Use glass panels!!! Flex panels are for dire situations, not...

If they say to use a fuse also then why not... Up to you. I only use the breakers. Fuses date back to when electricity was first used, breakers are a more modern invention to replace the one-time-use fuses. 16 amps should be enough, you will know quick enough if you start tripping breakers all...

I think 9k is plenty enough as long as you are insulated, the glass being the biggest heat loss. I have a 9.2k Coleman Mach roof unit, not mili-split, but is 9k range. It is in a cargo trailer and is way way more than needed. If they had a 4K I would use it. As is the compressor runs just...

When you say existing car battery, you mean the trailer's battery and not your actual vehicle cranking battery? and by car battery I assume means a lead acid battery? hopefully a deep cycle batt, or at least a marine battery. It will be more difficult to charge two types of battery off one...

Is hard to tell from your pic if your roof is dirty, pitted, paint peeling off in the pits or if it is smooth. For others reading and have different roof -the textured aluminum roof is a little harder to tape to than a smooth roof. You will need thicker VHB tape so it more easily sinks into the...

sure, that is how it works. That is why people DO use it, but is not the topic of why people do NOT use it. If you buy a store bought rv with this stuff in it already then you do use it one would assume. Why do people who do not have it not go to the trouble of installing one? or is this all...

You would need additional help/instruction with this but... you already have a battery. Can you strip the unit down and use the battery out of it as just a battery? That saves you lots of money. Sounds like you have several batteries, or did you sell the older units? If 100 amp hours works...

I think the reason is that for houses, when power goes out you want it to switch by itself, power does go out at times. In an RV, this is not really a concern. If you have shore power then that is more rare for people with full capacity solar/battery, bc those ppl are set up for boondocking or...

I have a hard time to tell... is yours an aluminum roof? painted white. If is rubber or edpm membrane then you have to penetrate, if aluminum or fiberglass or steel then you should use VHB tape. You will need to tape to the flat surface, not kidding, the flat surface runs front to back, not...

You might be fine, one thought... the AC unit will shade the panels next to it. I assume the two next to it are in series. Shading just one credit card sized area of one panel will decrease the panel output more than you can imagine. Consider how to remedy, maybe put the two as stand alone...

you can stop now, sometimes it can be helpful to disagree, but sometimes you are just wrong when you try to second guess things and info you do not have. EPever solar controller used to be that cheap on ebay, prices have increased. Sometimes you can find really good deals on the internet...

Sorry, you are wrong on all accounts, and I have never charged from shore power, I have solar, I have alternator. Everything I bought is new. Pure sine wave inverter, 300watts is big enough as I do not try to imitate a house. I have a 2000 REnogy sitting around but have never needed it. Don't...

They saw you coming at those prices... The only thing you did not over-pay for by much is the panels, which you paid $1 per watt. 70 cents per watt is about the going rate on ebay. Yes, you can buy the most expensive brand name components and be happy, but then you forfeit the right to complain...