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First weekend boondocking, and I am really happy with how my system worked... We didn't need air conditioning, but ran the residential fridge, kuerig coffee maker, air fryer, TVs, charged a bunch of devices and even used the electric fireplace to take the chill off Saturday morning. Never went...

Was working in complete shade, so it was pretty much a VERY expensive trickle charger, but it is making power! Six 350W Hanwha Q panels - two groups of three in series, each to a Victron 150/70 SmartSolar MPPT controller. This was added to my system I installed earlier this summer, that...

Finally got around to capacity testing my 310Ah cells I got from Exploric Energy on Alibaba (link below). These are installed in my system in my 5th wheel with a REC Active BMS. I charged my batteries all of the way up, disconnected all charging, and set my 15K air conditioner on 72F. It drew...

Copying this over here from beginners corner... Drew up a rough plan for phase I of my 50A 5th wheel install. Using a MultiPlus 12/3000/120-50 2x120V Inverter/Charger, 930Ah DIY bank, REC active BMS/precharger, Orion DC-DC charger. Once that is in and working, and my bank account can handle it...

Still have some programing issues to work out between the REC, Cerbo, and MP, but the majoity is done. Even ran the A/C on battery long enough to blow some cold air, and nothing got hot... Thanks @Michael B Caro for the washers, they fit great! And I can't thank @the_colorist enough for the...

**Edit... made changes marked with ** My system so far consists of a DIY LiFePO4 bank of twelve 310Ah cells in 3P4S for 12V, a REC Active BMS, a Multiplus II 2x 120V, a Cerbo GC, and an Orion 12/12-30A DC-DC Charger. I am setting up with conservative charging settings to maximize cycles...

I am trying to figure options for bulk charging my cells when they come in, before top balancing. I plan to get a 10A power supply for top charging, but realize it would take forever. The only charger I currently have is the one in my camper now. But, I don't believe I can configure my new...

How do I choose a BMS for my 310aH DIY packs (3 x12V for 930aH)? For a 50A 5th wheel project, so I need under temperature cutoff as well. How do I pick the size? Here are the other components I plan to use, except I haven't picked a charge controller yet. Thanks for any help!

I have lots of mechanical and carpentry tools, but really nothing as far as electrical (other than some cheap automotive stuff). So, I am trying to figure out what I need for my DIY project. I am not trying to build a complete workshop here, just build out the system in my 5th wheel and...

Pulled my 5th wheel out into full sunlight at solar noon to test my solar production. I have 2 arrays, each has 3 350W Hanwha Q panels in series going to a Victron 150/70 Smartsolar MPPT controller. The wiring from the panels to the breakers is 8 AWG that I bought from Windy Nation with MC-4...

Starting to look at panel configuration for my 5th wheel build and looking for input... I will have a total of nine 210W panels. Here are the specs: Max Power Output(W): 210W Voltage MPP Vmp(V): 16.77V Current MPP Imp(A): 12.48A Voltage Open Circuit Voc(V): 19.83V Short Circuit Current...

Putting together a 3P4S bank with twelve 310Ah cells and a REC active BMS. I could use some help with Busbars. Will it be ok to buy 1/4" x 1" copper and make my own? Will the longer, 6 terminal lengths be a problem? Thanks in advance!

Getting started on solar for my 5th wheel to enable boondocking at times. I am doing this in two phases, with the battery bank, inverter/charger/DC-DC charger first, and then after that is all working good (and I save a bit more money), the panels and solar charger second. Wanted to run my...

Starting to research what panels will give me the most watts for the space on my 5th wheel. The best combo so far is on Amazon, Newpowa - 7 210W and 2 160W for a total of 1790W. And they are actually the best price too... Are they good quality...

Started my top balancing, 3 cells at a time since my bank is a 3P4S in 2 sections. These are 310Ah cells from Exliporc Energy on Alibaba. Couple lessons I learned... 1/4" bus bar is too thick for the little studs - had to counter bore the bottom a bit to set them down some. Make sure you...