this kind of videos keeps me pushing,i now have managed to collect 8400 laptop batteries waiting to be opened up and good cells being salvaged from them..what a project,i might start a youtube channel even maybe you guys will follow along
Glad your trying the diy battery I recommend the jbd BMS or the jk BMS. The jk has active balancing Wich I like and the jbd has passive. Don't do what I did and not balance them beforehand it took over a week for all the cells to match
Being cold, i would rap them batteries in a heated blanket they dont like being charged in cold weather. Put some Styrofoam arond them to. I run almost my whole trailer off 18650's I'm surprised joe didn't inform of that. Be careful an check them batterys often. My brother built himself 3 14s 80p packs an never check them or his baitium an burnt his house down. I check my battery's individual volts monthy an use my klien infrared camera weekly. Great battery bank.
Yes I have foam to insulate them and a tem controlled heater for winter time. And yes on checking the batteries and that's why they are outside. I am looking into adding a couple of those lithium fire extinguishers inside the box as well. I have a jbd BMS and a 5 amp active balancer on top of it as the jbd didn't have enough to equalise the huge packs. I would love to see your setup if you have a video up please share it
Nice! I have a large powerwall built with 18650 using Batrium as the BMS. Agree 100% its for someone with time vs money (in my case I'm retired and did it as a hobby) but I'm in year 7 and the oldest packs just went over 2,000 cycles and working great. The key for long life in my experience is lower stress on the cells by doing a larger battery so you can operate in the middle range and avoid the extreme min (3.0v * 14 = 42v) and max (4.2v * 14 = 58.8v). I do 3.54v/pack * 14 = 49.5v min to 4.0v/pack * 14 = 56v max with an overall average 37% DoD. And if you can, do moderate ambient temps. And great to hear @AveRage_Joe help you - his work with 18650 helped me several years ago - he's one of those 'real info' channels.
All of it as this tiny house is a rental unit. But great question. One thing people don't understand is that even though it's a write off on taxes it still cost you money you just don't have to pay income taxes on it but sales tax still applies.
@@Self.reliant And being entirely self contained allows it to be more efficient and more cost effective in the long run. Do you get a steady flow of guests?
this kind of videos keeps me pushing,i now have managed to collect 8400 laptop batteries waiting to be opened up and good cells being salvaged from them..what a project,i might start a youtube channel even maybe you guys will follow along
Glad your trying the diy battery I recommend the jbd BMS or the jk BMS. The jk has active balancing Wich I like and the jbd has passive. Don't do what I did and not balance them beforehand it took over a week for all the cells to match
Being cold, i would rap them batteries in a heated blanket they dont like being charged in cold weather. Put some Styrofoam arond them to. I run almost my whole trailer off 18650's I'm surprised joe didn't inform of that. Be careful an check them batterys often. My brother built himself 3 14s 80p packs an never check them or his baitium an burnt his house down. I check my battery's individual volts monthy an use my klien infrared camera weekly. Great battery bank.
Yes I have foam to insulate them and a tem controlled heater for winter time. And yes on checking the batteries and that's why they are outside. I am looking into adding a couple of those lithium fire extinguishers inside the box as well. I have a jbd BMS and a 5 amp active balancer on top of it as the jbd didn't have enough to equalise the huge packs. I would love to see your setup if you have a video up please share it
You can hook up those batteries up to a DC welder and if they aren't dead for too long you can shock them to life
I have tried that but 2 of them have bad cells and the rest are reduced capacity
Nice! I have a large powerwall built with 18650 using Batrium as the BMS. Agree 100% its for someone with time vs money (in my case I'm retired and did it as a hobby) but I'm in year 7 and the oldest packs just went over 2,000 cycles and working great. The key for long life in my experience is lower stress on the cells by doing a larger battery so you can operate in the middle range and avoid the extreme min (3.0v * 14 = 42v) and max (4.2v * 14 = 58.8v). I do 3.54v/pack * 14 = 49.5v min to 4.0v/pack * 14 = 56v max with an overall average 37% DoD. And if you can, do moderate ambient temps. And great to hear @AveRage_Joe help you - his work with 18650 helped me several years ago - he's one of those 'real info' channels.
That is awesome do you have a video of your setup on UA-cam I would love to see it. And yes Joe is an awesome friend.
How much of this is a business expense write-off?
All of it as this tiny house is a rental unit. But great question. One thing people don't understand is that even though it's a write off on taxes it still cost you money you just don't have to pay income taxes on it but sales tax still applies.
@@Self.reliant And being entirely self contained allows it to be more efficient and more cost effective in the long run.
Do you get a steady flow of guests?
@fredbraun5308 we get a lot of guest. Even on slow years every weekend is filled up.
@@Self.reliant 👍