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Everything in this link leads me to believe your arrow is pointing to the ground terminal. https://pegasusastro.com/forum/viewtopic.php?t=652

The garage door opener is one that can be operated by a battery backup. It’s a little 7.2ah 12v battery that runs it but I can connect any 12v source to the opener’s 12v input leads and be good to go. I was going to just run it permanently by that method and not even bother with having it...

Fast forward 9 months and the only progress made is lighting and the battery. I bought 6 sticks (LED lights) that run on 110v and have so far installed two of them over the work bench. For the battery, I picked up an Anker 767 in July and intend to use it as a dual-purpose unit. For...

Like @Jbird2000 said - there is no grid to interfere. The shed is a stand alone entity with the only incoming source of power being the eventual panels on the roof.

While I agree that more power-consuming items might come along, I don’t think they will be anything that is 24/7 consumption like a fridge or cooler. Those items are in the garage and my shed is mainly for storing stuff as well as a workbench for fixing things that break. It’s not even...

I do like the idea of getting used panels for a cost savings. I’ve never looked into getting used residential panels. I guess I thought they might have been much higher voltage than I could use. Time to do a little digging - thanks for the ideas!

We currently don’t have an inverter nor transfer switch. Our trailer doesn’t come with one from the factory and we don’t have plans to add one at any point. For the size of our camper we tend to not spend much time inside enjoying the creature comforts inverters typically provide. A majority...

I think that heater would be even overkill and might eat up the available power quicker than those two panels could replenish. But I am onboard with the idea of building a box to insulate it. I was even considering a glue up of 1.5” lined foam board glued up to enclose the two pieces. But I’m...

Whoops, yep…I was close!

Does your camper have a 12v residential fridge? Ours does and it is a real power hog - hence going with the second battery. If it were propane we would have likely stuck to one. Since we don’t have panels up top and many of the Harvest Host locations don’t allow generators, we wanted to have...

I think it have a little better grasp now. When I first starting researching panels and the differences between 12v and 24v, I thought for a 12v system you’d use 12v panels and for a 24v system you‘d use 24v panels. Not sure why it didn’t dawn on me to just split the wiring to both parallel...

I think I’ll have a main disconnect on the panel. That should sever any power from flowing back/forth and make the pigtail safe, right?

Seems similar to my setup. Thanks for sharing your situation. I too roll to the house occasionally to charge up - normally after a 12-hour smoke with my small pellet smoker. Once the panels are on the roof I figure it might be an indefinite system!

Weather is definitely not cooperating. I’d like to get the underbelly opened up and start rerouting the cables, but of course another 12” of snow is forecast between now and tomorrow afternoon. Can’t wait to get this ball rolling!

Do you have a thermostat that controls the on/off of the heating pad or do you manually trigger the pad when you know low temps are coming? I’m trying to come up with a low-maintenance solution so something thermostatically controlled would be idea. I’ve put 3” rock wool between the...

Unfortunately I didn't find a way to measure the average daily usage prior to wrapping up this past camping season. Of course now, in conjunction with the battery upgrade, I'm installing a Victron Smartshunt that can track the daily amp consumption for me. But even if I had it all finished...

Well this is just for the roof of my shed, lights and garage door opener are likely the largest loads it’ll see, and the inverter will only be used occasionally to charge up my 60v lawn equipment batteries. I think I’ll keep it simple and stick with 12v. Man you guys are smarter at this stuff...

I’m planning to increase the available 12v power to my RV but am not dabbing in solar yet. We only need the ability to get a couple days off-grid as we spend one or two nights in the camper while traveling longer distances from origination to destination and then are plugged back into shore...

If I’m hooking up two batteries in parallel, what are the pros/cons of the two wiring layouts below? I see examples of both on the internet and I don’t know which way is better and which way is worse. To put this in perspective, it will be a simple dual LFP4 battery setup in my travel trailer...

Thanks. We do have a little 100w suitcase panel from Renogy that can be used like you mentioned, but it’s not a game changer by any means.

I’m looking to power my shed/man cave with solar panels on the roof, a fully wired shed (lights, 4 duplex outlets, garage door opener, etc), a circuit breaker panel, and my Anker 767. Occasionally I use the 767 camping so having the mobility option of taking it with me and then plugging it back...

Thanks a lot, @rmaddy! The top one is how I have it laid out right now anyways (on the board, but not wired up yet due to temps outside) so I’m happy I don’t have to change anything.

Correct - the Renogy unit is rated for a max of 5.56 amps. Like I said, I never have an expectation of it being a game changer. Still it never hurts to stick a little back in if the conditions are right.

Not sure if it is considered full house sized, but it is 10.7 cu ft and it says it uses a max of 11 amps. Here's the sticker inside the door:

I made some progress today. Mounted plywood vertically and horizontally, boxed in the base of the batteries and then anchored them with straps. Also mounted the shut-off switch, 60A fuse, and the battery-monitoring shunt. After looking back through this thread, I’m pretty sure I forgot to...

New to the site, new to solar, and new to lithium. Planning an upgrade to my RV‘s battery system for longer trips away from shore power. First phase this year is a large battery bank and the second phase likely next fall will be solar on the roof. Hope to learn lots here and will likely ask...

I want an outside light over the roll up, another over the man door, an outlet in the ceiling for the garage door opener, another in the wall to plug in the mower’s battery tender, and another at the workbench for the greenworks and dewalt battery chargers. Having the shed all wired to a panel...

I've been using this solar generator in my shed for a couple years now and even added an expansion battery to it this past fall. It's been staying topped off with a simple Renogy 200w "suit case" panel kit - one of the dual panel deals that can be folded up for portability. I unplugged the...

That is a pretty ingenious way to take advantage of the free radiant heat! Unfortunately for me, I don’t have any current plans to heat the shed for using it as a shop in the winter.

Thanks @rmaddy for the questions and input. First, I’ll definitely flip the orientation of the fuse and shut off switch like you said. Second, it is an ANL 60 amp fuse. It was recommended by a few folks on an RV forum I frequent based upon my appliances and 12v demand. The fridge draws a...

@smoothJoey it’s a WFCO lithium charger. 14.6v in bulk and 13.6v in absorption. It will run for a max of 4 hours in bulk which is likely not long enough to charge my 412ah bank back from a low SOC back to full, but I am installing a switch next to the panel which will reset the 4 hour timer...

Yes, I had to update my firmware to v2.1.5 when I first connected up the expansion battery. Maybe the rooftop unit on my trailer has a higher draw upon start up. Good to know it’s possible though…maybe wiring in a soft start would help me.

Thanks @jberger. I’ve thought about that and came to the conclusion (after speaking with my wife LOL) that we will not be in those colder environments with our camper. I think the coldest we have ever experienced while camping was a dip to 49 degrees this past fall while in Gettysburg one...

That might a good idea for me. At least if I needed to run a cord from the house to the shed (if the battery is unavailable) I could run over and extension cord from my RV’s 30A plug on the side of the garage. Good temp solution. Thanks for the idea, @Mattb4

Ah, I understand. It was also WFCO’s charger - a 55 amp 3-stage charger. But the profile wouldn’t have me in the correct higher range of voltage to suit the new lithium batteries so I purchased the new one. I am keeping the old one so it is possible to return things to how they were in case...

I see a few threads discussing the merits of each system, but the advantages of 24v over 12v don’t seem to be realized until the you are a large system. Is that true? I’m looking at installing four 200w panels on the roof of my shed and don’t foresee it expanding (due to physical size of roof)...

It'll charge fine off the gas generator. Even most houses don't have the cleanest power coming in or going out and that's typically what you'd use to charge it.

That might be true, but it seems once you pass a certain level of power load in a larger RV they are then fitted with larger chargers and less of the simple WFCO systems. Power Dynamics seem to be more common. So chances are that I wouldn’t pull the new lithium out and instead would just leave...

Okay, came home today to the F2000 back at 100% charged w/0w input because it was topped off. Not sure what changed...but it apparently it started working again. I plugged the B2600 expansion battery back in and it started right up and then showed about 160w of DC input coming in as it started...

I meant that if I place 4 panels on my roof, then I would have the wiring paired and then combined. If the panels are “12v” panels, then I take the first pair and connect them in series and then I take the second pair and connect them in series. Then each of those pairs can be considered a...

I meant the difference in price for 12v panels and 24v panels. I wasn’t sure if it is better to get 24v panels and wire in parallel or get 12v panels and do pairs of series wired panels that end up paralleled together.

Garage door, radio/speakers, indoor lights, outdoor lights, and recharging 60v power tool batteries once or twice a week. Most items on 12v power and the battery chargers off a 2000 inverter. Nothing heavy like heat or a/c and only occasionally as the grass dictates. I know it would likely be...

Did you have to install a soft start for the 767 to run your A/C? Our TT has a 13.5K unit on the roof but the 767 doesn’t want to start it. I too don’t believe it’s a viable long-term solution but it would be nice to know it has the capability if we are on a long trip and want to take the edge...

70a controller? I wonder why Renogy and Rich Solar pair their respective 40a MPPT controllers with the 800w kits. I’ll have to dig deeper on that - thanks.

I have a solar generator and expansion battery that typically live in my shed to power all my needs - lights, equipment battery charging, smoker, etc. They are kept topped off by solar panels and I’ve never had an issue with depletion due to anything that is connected up using AC/DC power Now...