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I use a bus bar for the battery banks, each bank has a fuse & switch. Then from the battery bank bus bar to a fuse & switch to the main bus bar with the charge controllers & inverters. Works great with 2 battery banks, plan is to add a new battery bank every 3 or 4 months, as funds permit.

Is there a limit on the # of battery banks that can be added to a system? I have 2 - 48v-280ah battery banks now & have plans to expand. They are connected to 2 inverters, 6kw & 4kw. Everything is working great but we need more storage capacity. We would like to be able to run 2kw for 24hrs...

A friend uses lead acid batteries for his solar system & wants to add lithium batteries to it. I know it's a bad idea & I have tried to talk him out of it to no avail. Just curious what will happen! He has a 48v system with 3 banks of lead acid, 24 batteries total, 8 in each bank. Going to add...

Sweat!!! We ordered 16 cells 1st time & 20 on the 2nd order. Nothing but good things to say about 18650battery, we dealt with James. Good luck getting them all together.

We have made 2 orders from 18650battery with excellent results. We only ordered the grade-A cells, 16 the 1st order & 20 the second. Put together 2 16s-48v battery banks & 1 4s-12v battery. All cells works great, no issues after we dumped the Daly BMS & went with Overkill.

I'm in southern Ohio & our utility, Adams Rural Electric charges $33 for each meter. I checked on grid-tie but the booklet of legal jargon & the cost was to much. I went with an off-grid system & use manual transfer switches, so there is no chance it will back feed to utility. It cost us $66...

I'm happy with my choice going with OverKill BMS, like Will said, they just works like it's supposed too, every time!!! They are not approved for medical use for nothing, there has to be something to it. Maybe the OverKill rejects are sold under a different name, who knows. Try to save a few $$$...

Yes, the BMS is set to start balancing at 3.40v. Will let you know how it's working after a couple days of sunshine. Thanks

Set to 55.2v bulk/absorb & 54.4 float. Supposed to be sunny the next couple days will see what happens. Thanks

Solved my cell balancing problems by dumping my Daly BMS. After much research I went with Overkill BMS, Will's videos & being approved for medical use sold me, works great! My question now is where to set my charge controller, had it set at 56v bulk, absorb & float. The delta between cells would...

It's probably on here but I can't find it. I have EVE 3.2v 280ah 16s 48v battery bank, going to add more battery banks in the future. My BMS has negative cable length of 24" from battery to BMS & 24" from BMS to bus bar. Does the positive cable need to be the same length as the negative? If yes...

Do a comparison, tear down & testing of the new All-in-One Hybrids that has charge controller, inverter/charger combined vs. a separate charge controller & low frequency inverter/charger. Granted the All-in-One Hybrids are much simpler & cheaper to install but are they better overall? I have...

My thoughts exactly, it's like they can't see the trees for the forest. Maybe they are working on charging options in R&D but don't want to let secrets out until perfected. I have a few more ideas on the subject but the engineers are smarter than I am but maybe not as creative! If I had time, I...

We have a whole house water filtration system; I hope that takes care of it. If I'm missing something please let me know, don't want to make my family sick just to save a few $$$$.

Watching new video, good luck getting permits! That's great giving away batteries, wish I was closer but 2k miles just a little far to drive. Looking forward to more videos, hopefully the city doesn't hold you up over a year or 2!!!! Keep up the good work, thanks!

I use this to turn my hot water heater on/off, work great. Dewenwils SKU# HOMT01A

If you want to know where you are using energy get something like Emporia Energy Monitor.

There is 2 reasons I went with Overkill. Will Prowse testing videos, he said they just work like their supposed too. #1 reason that sold me, Overkill BMS is approved for medical use, doesn't get any better than that. Had balancing issues with Daly, emailed Overkill my specs & they said I could...

Video on a full camper install. Your book is good but but a video would be great! If you already done one, let me have the link to it.

ok, as they say, time will tell.

I figured the auto companies would make it next to impossible to use any battery pack except theirs. I will mark this down as a crazy idea! New autos are piling up because they are not selling, probably buy one in 2 or 3 years that was never sold. Think I will wait & see what happens, need to...

Has anyone bought a used EV that the battery was bad & made their own battery bank for the auto? Should be able to buy it cheap if the battery wont hold a charge. Just a thought, good idea or crazy?

What is the active balancer you used?

(16) Eve 3.2v 280ah cells for my 48v solar system. Absolutely no comparison between AGM & Lithium. WOW! best upgrade I made in 2023 by far!

I use this, https://www.amazon.com/DEWENWILS-Mechanical-Outdoor-120-277-Programmable/dp/B09TSWQLW5/ref=sr_1_3?crid=Z7T4X7LWCZ58&keywords=dewenwils+timer+hot+water&qid=1703040123&sprefix=dewenwils+timer+hot+wate%2Caps%2C527&sr=8-3

Wounder if it was during the 2+ years of covd19, everyone was having trouble with supply issues. It was even hard to get people to come to work & some places the government wouldn't let people work. Like I said before, they helped me all the way & answered all the questions I had. My buddy that...

That's a great thing about solar, if you think ahead & buy the right equipment you can keep adding to your system & use what you already purchased. I started with a 12v system to get my feet wet & soon realized to do what I wanted to in the future I had to go with a 48v system. My 12v system...

I went into my solar project with a little different perspective. I'm asked a lot by friends & family; how long will it take to pay for itself? I don't care if it ever pays for itself with saving from the power company. My goal is to be able to operate my house on solar when I get too old to...

I have AIMS 6kw Inverter/charger & an Aims 4kw Inverter/charger, both 48vdc - 120/240ac split phase & both work great. 4kw system, Aims solar panels (6 x 320) 1920watts, Aims 3-string combiner box, Aims 40amp charge controller, North Star - Blue 210ah battery bank. 6kw system, used solar panels...

I have a 6-string combiner box, have 18 panels wired 3s, used 10ga PV wire to combiner box. From the combiner box to the Charge Controller I need 4ga wire, about a 50' run. All I can find is building wire, stranded THHN/THWN-2 Is this what everyone uses?

The 34% SOC is what the Daly BMS software was telling me. Going change some settings, top balance all the cells & put in back on-line.

Great info, this explains a lot. No doubt I messed up, had a setting wrong that took voltage down to low. Top balancing the cells now & corrected the setting. Will set it up to run between 3.000-3.4000 & see what happens. Thanks for all the info!

Yes it was an older video, I think about 3 or 4 years ago.

It's for an off-grid solar system. I may have misunderstood but I know Will said 10% to 90% would make the cells last longer. I just assumed it was for electric system to run a house. Would like to get as much life out of the cells as possible.

That is Will's parameters to get the most life out of the cells. Discharge no less than 10% & charge no higher than 90%. This will extend the life of the cells a lot!