diy solar

diy solar

Dear Will, Custom one of a kind 48v lifepo4 pack for DIY, i bet you've never seen a pack like this!!!!

ChuckNorris

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Joined
Sep 6, 2020
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36
I spent 2 years dreaming this up after many variations later. This is my product. I will probably never make another one of these. It was way too much work. Insanely clean wiring and design for the ultimate simplicity for my customers. I am selling this one of a kind pack to a local customer for $ 5300 Let me know what you think. This is NOT for sale on this thread. For discussion only. Admin's don't move this thread like last time. I'm not selling it here.

~16x 3.2v eve cells
~120amp overkill solar bms
~victron smart shunt
~225 pounds
~ 175amp anderson in and out connector
~100 amp dc breaker
~Steel container with rolling casters
~Custom electrical box for electronics
~BMS box can be pulled out in one yank. Only actual wires that need to be disconnected is braided bms wires.
~BMS box locks the battery into place
~Customer wiring harness and wiring channels so ALL balancing leads are on the outside of the case to make installing super easy and error free for DIY
~Steel plate at bottom as compression plate. In the event the cells need to be removed you can remove the casters at the bottom which releases the bottom metal plate to remove compression so you can remove cells in the case of swelling
~Carbon fiber wrap.

Should out to Will Prowse for all the inspiration and knowledge i needed to build this pack. After years of watching him and 100's of hours of my own research and designing. I would LOVE a simple response from Will that he saw this. It would mean a lot to me. I would love it if someone got his attention for me.

1000 watt load @ 14 hours
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I spent 2 years dreaming this up after many variations later. This is my product. I will probably never make another one of these. It was way too much work. Insanely clean wiring and design for the ultimate simplicity for my customers. I am selling this one of a kind pack to a local customer for $ 5300 Let me know what you think. This is NOT for sale on this thread. For discussion only. Admin's don't move this thread like last time. I'm not selling it here.

~16x 3.2v eve cells
~120amp overkill solar bms
~victron smart shunt
~225 pounds
~ 175amp anderson in and out connector
~100 amp dc breaker
~Steel container with rolling casters
~Custom electrical box for electronics
~BMS box can be pulled out in one yank. Only actual wires that need to be disconnected is braided bms wires.
~BMS box locks the battery into place
~Customer wiring harness and wiring channels so ALL balancing leads are on the outside of the case to make installing super easy and error free for DIY
~Steel plate at bottom as compression plate. In the event the cells need to be removed you can remove the casters at the bottom which releases the bottom metal plate to remove compression so you can remove cells in the case of swelling
~Carbon fiber wrap.

Should out to Will Prowse for all the inspiration and knowledge i needed to build this pack. After years of watching him and 100's of hours of my own research and designing. I would LOVE a simple response from Will that he saw this. It would mean a lot to me. I would love it if someone got his attention for me.

1000 watt load @ 14 hours
Quite Outstanding!! I'm speech less!!

Note: If you have some pictures taken during making this battery pack.
I would be very interested to see the compression mounting braces you used.

I was thinking that it was preferable to have the batteries mounted vertically next to each other.
In your case, it seems that the batteries at the bottom receive all the weight from the batteries above.
But I imagine that you must have studied this issue before building your pack this way.
 
Wow that is one of a kind! Very interesting configuration indeed. Love the carbon fiber.

And thank you for the compliments! You did a great job! I'm glad my videos helped ?
Thanks Will. I appreciate that. We all appreciate all your hard work on all your videos. Truly are one of my favorite YouTube streamers. I would love to see you mess with some more gpu crypto mining. i've been in crypto for 10 years. I currently manage over 350 video cards. Close to 1000 at one point. I mess with all kinds of power eating hardware. You could do some incredible things with all your solar. good excuse for more solar ; P I'm always down to chat sometime. I'm about your age, similar interests. i have some things that would blow your mind and give you all kinds of ideas. Give me 5 minutes sometime when you got time.
 
Quite Outstanding!! I'm speech less!!

Note: If you have some pictures taken during making this battery pack.
I would be very interested to see the compression mounting braces you used.

I was thinking that it was preferable to have the batteries mounted vertically next to each other.
In your case, it seems that the batteries at the bottom receive all the weight from the batteries above.
But I imagine that you must have studied this issue before building your pack this way.
i have studied the issue before. When compressing them to spec. The compression is more than the weight of the cells would be. It's not super ideal to have them stacked like that. however.... if someone is really concerned about that. You can just lay the pack flat on it's back so that the cells are facing up. I originally didn't have casters on it. The few people that bought my pack would just use the mounting ears the case has instead of casters. So it would lay flat under their motor home or whatever bolted down. But after lifting a few of these 235 pound packs.. I said lets go with casters this time. I also wouldn't say the biggest issue is the weight on the cells. I would say the only real worry would be how the electricity flows in the cells from horizontal. i can't remember what all that research was saying. something about over long enough time it doesn't evenly use cells or something like that. i did look at the spec sheet of eve and contacted them. They said there is no ill effects from laying them on the sides. I will post the few pictures i have of some of the pack being built. i don't have much.
 
While i was digging for pictures of the battery making process. i ran across all of these and might as well share. All electrical related ; )
~Some earlier version of my 48v pack.
~One of my 12v 280ah pack designs with the same idea in mind. Unplug bms in 3 spots. pull out entire bms, slide a new one down in if failure.
~My ebike, call it what you want. i call it 10KW Freedom to ride wherever i want. 60mph in a couple of seconds, up to 60 miles of range. usually just cruise around 20-30 and ride some dirt trails. 4.4kWh 72v pack in that bad boy.
~custom heating/cooling box. You put a single crypto miner inside of it and it vents the hot air either inside your home or outside depending on when you want the heat. It's setup with a thermostat and smart vents. It heats the upstairs of my house in the winter. (i haven't ran my furnance in 5 years ; p )
~My tripple monitor work/gaming system
~My server rack in the basement. Gaming pc, stream pc, lots of compute, AND 2.4 petabytes of hard drives crypto mining Chia. 220x hard drives. some days fully powered by solar.
~And a whole lot of graphics cards in custom mining chassis. All 1070ti's........ hundreds of them.
 

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Continued pics.
Gpu mining rig, solar array, previous version of battery and some of my 12v 280ah designs with customer metal end plates and banding the batteries with a banding gun for compression.
 

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Last edited:
i have studied the issue before. When compressing them to spec. The compression is more than the weight of the cells would be. It's not super ideal to have them stacked like that. however.... if someone is really concerned about that. You can just lay the pack flat on it's back so that the cells are facing up.

I was just recently watching 'SolarEngineering' who built a battery pack with a similar layout, but not as clean.
He mentionnned that he contacted the seller BLS, and they replied that having the cells flat was fine as long it was not in a moving vehicle.
 
I spent 2 years dreaming this up after many variations later. This is my product. I will probably never make another one of these. It was way too much work. Insanely clean wiring and design for the ultimate simplicity for my customers. I am selling this one of a kind pack to a local customer for $ 5300 Let me know what you think. This is NOT for sale on this thread. For discussion only. Admin's don't move this thread like last time. I'm not selling it here.

~16x 3.2v eve cells
~120amp overkill solar bms
~victron smart shunt
~225 pounds
~ 175amp anderson in and out connector
~100 amp dc breaker
~Steel container with rolling casters
~Custom electrical box for electronics
~BMS box can be pulled out in one yank. Only actual wires that need to be disconnected is braided bms wires.
~BMS box locks the battery into place
~Customer wiring harness and wiring channels so ALL balancing leads are on the outside of the case to make installing super easy and error free for DIY
~Steel plate at bottom as compression plate. In the event the cells need to be removed you can remove the casters at the bottom which releases the bottom metal plate to remove compression so you can remove cells in the case of swelling
~Carbon fiber wrap.

Should out to Will Prowse for all the inspiration and knowledge i needed to build this pack. After years of watching him and 100's of hours of my own research and designing. I would LOVE a simple response from Will that he saw this. It would mean a lot to me. I would love it if someone got his attention for me.

1000 watt load @ 14 hours
View attachment 89802
very nice build!
 
Nice, very nice!

One comment (I can't help it, it's what I do for a living, commenting on other's designs that is), I would put an insulating plate on the inside of the door "just in case".
 
very nice build, I am a bit worry about cells laying sideway and all the weigh pressing on the 2 bottoms cells, but if the box is lay flat and the cell stand upward then no issue ofcourse ... :)
 
Ummm,, you have HUNDREDs of 1070ti's!? and nobody commented on that? Or is that a picture from the net?

I also partially heat the house (made it to January 4th this year before the furnace went on) with mining rigs. In Michigan

Now I am about to shutdown due to AC season, and increased summer peak rates, so starting to asemble what I need to move the miners outside, and power, partially, with used solar components. Im afraid if I just vented outside, I would pull the hot, humid makeup air into the house, driving AC cost up.
 
I thought that was odd no one mentioned all the gpus. Probably don't understand it. I only run 100 out of my house. The rest are at my clients house. 128 cards are mine in total. I don't ac cool any of them. I use different methods to loop the outside air in and back out of my garage or house. Been working like that for 5 years now. I use the extra thick cards. They can run in 120 degree air no problem.
 
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