This first kit is designed specifically around a pack battery cell. These are SPIM08HP cells. I dont know the make but you can get them here. https://batteryhookup.com/collections/spim08hp-200a-power/products/spim08hp-3-7v-8ah-200a-lithium-ion-w-cell-holder
So my need for new batteries will spawn a new product line as I will design other kit versions using 18650 cells and will offer a range of sizes eventually building up to the outdoor Fusion Power Tower.
Matt, once again, very interesting! Here we are about to start playing with 18650 but this is far more interesting! No spotwelding! Super! Wich bms are you going to use? I am thinking of a 14s system. Thanks.
And the plan was less projects… My head is in a overflow again… All coming together, that is the good news.
What temperature were the batteries at while charging? I switched over from lead to LFP (lithium iron phosphate) and I am a little paranoid about them getting too cold next winter. I am going to try and keep them above 40F, but 50 might be even better. Other lithium chemistries I believe have similar low temperature issues -where the lithium metal plates the cells and causes a short - but the LFPs are just touchier is what I recall reading. They sure are sweet batteries, though. I hope they give me as many cycles as they are supposed to - I would not have to replace my batteries for decades.
They were inside and hanging on the back wall of the RV. Im not 100% it was the cold, they could have been bad cells or the BMS set up could have also play a part in it. I set it up so the BMS would only cut off the charger and the thought was that the Inverter would cut off at low voltage.
Even though they were inside that back room and this wall can still get cold.
Yeah lead acid just dont work with full cycling. They die off fast,
I am going to re use the 200 amp BMS from my LifePo4 system. It will still work with these cells but the high voltage cut off will be lower than what these cells are capable off. My charger can not achieve this high of voltage anyways. I may upgrade later one.
That is something else we will be working on is our own programmable BMS up to 24 volt systems, to direct interface as part of my controller.
Hey Matt, I have about 200 of these SPIM08HP cells. From what I have researched they need light compression. I am looking for a good way to series, parallel them. I am thinking about all thread with plastic end boards for compression. Parallel 14 cells together, then series 14, for 48v.
Yeah thats what I am planning. Im waiting for them to show up before I order anything. But from the looks of them 1/4-20 will fit the terminal slots. I plan to use all aluminum threaded rod, nuts and washers.
In my CAD model and this is just based on pictures and given dimensions from Battery Hook up. The gap spacing between the terminals is 0.335" So a 7/16 nut with two washers will fit this perfectly. But right now I am only guessing as I dont have the real deal.
Makin some charcoal!! I made a kiln out of some obtainium I had here. This was plan A, It didnt work so plan B chuck it in the fire!! lol
What I tried to do is turn that oil burner that turned into a wood burner into a furnace to fire the kiln. It turned out with out the chimney it make charcoal on its own. So going to mod that stove to work as a partial burn retort. The kiln I have plans to rebuild it so it can get much hotter.
The Fusion Charcoal gasifier is now in production, I have quite a bit cut for it already. Ill start welding here soon.
Here is the little tiny grate; inst it cute?? haha that is tiny compared to all other machines 
So I completely scrapped the kiln idea, Im such a newbie here haha!!.
Just a barrel with holes in the bottom is all that is needed.
So Im going to work a new version of this but using the breaker system from the stove with a barrel for collection bellow. Fill it up, fire it up and turn it on. I can program a timer into it so the crumbler will wait for it to get good and going before it starts to process.
This is way too easy!!
Moving on, I cut out the bottom of the burn barrel and put a passive grate under it with a catch barrel underneath that. It worked fairly well, I think if there was some sort of agitator It might work a little more effectively. If I can get that to work then you just keep feeding it. 
Matt,
I’m really enjoying your posts on this topic. I can’t stop looking at your pictures and thinking about “Automatic Firewood to Charcoal.” The grate and catch barrel is very clever. I imagine a rotating bar with a few large cams on it positioned just above your grate. Use nautilus-shaped cams that lift gradually and drop suddenly, preventing jam-ups.
My best results for pyrolyzing “firewood” have been with a Curtain Kiln blowing air across and slightly down into the Stainless steel lined burn chamber. More complex and a lot hotter operation, but it eats wood fast, is smoke free and makes nice charcoal.
Love it, Yeah Kristijan was right I and had suspected the rotating busters would be a bit over kill. I think Im going to remove them and build a grate system exactly like you mentioned.
i have thought about batteries i thought maybe a person could take a 55 gallon drum and build edison/ nickel/iron batteries from my understanding a large battery would give high amp hours but still be 1.5v each so you would need to series connect them but some guy on youtube was nickle plating his own from metal window screen to make a mesh the only source i could locate nickel from was welding rods but plating your own is just electrolysis
1.2 to 1.25 volts if I remember right and yes each isolated container no matter how big would only be 1 cell. Once upon a time On the yahoo forums someone talked about making a large nickel iron cell using 50 gallon plastic barrels and sheets of nickel. He never posted pics and went quiet though. It’s a good solid chemistry but it does electrolyze a lot of water and has a lower efficiency then lead and much lower than lithium. There was talk in some academic circles of harnessing that electrolysis and turning it into a hydrogen maker and battery… just research still.
The efficiency is not there. Just get Lipo cells and be done with it. Either LifePo4 or lithium ion both are well above 90% efficiency and they are getting cheaper and cheaper all the time. Its not even worth your effort to try and build a better mouse trap with whats currently on market.
You can get these cells here for $150 bucks this is 2 kW/hrs!! Thats a great deal and those cells absolutely amazing. https://www.batteryclearinghouse.com/products/100-pack-3-7v-8ah-200a-lithium-ion-power-spim08hp
Just build large enough so you never hard cycle your cells. This is easier to do now that prices are so cheap. If you never hard cycle your batteries they will last many many years.
I knew a guy that built what started as an ebike and ended up being beefed up into an electric motorcycle using those cells. I think he went with 72V and 50ah total.
Where would you buy a sheet of electrolytic nickle?
We make the stuff where I work and even I could not tell you where to buy a sheet of it.
At the time the old timer said he was ordering it via Alibaba. You had to take a lot with a grain of salt on yahoo forums
Yes that guy was from Texas if i remember correctly and as soon as he was asked to show and prove us he went very defensive , said he would tell us but not show us , still it did get a lot of people talking about trying to build one
Sheet won’t work, you need at least nickel(II) hydroxide, which can be treated with potassium hydroxide to make nickel(III) oxide-hydroxide. Most of it it starts with salt like NiCl2, which is fairly cancerous. I don’t know if you can just dump chlorine on sheet nickel and have it work or not. I’m not touching it. There is like a nickel (II) sulfate that might work and could be safer to synth but I didn’t chase that reaction down.
I don’t think edison batteries are worth your time at this point, unless you are doing it for fun.
