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Dr. Dickie

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Sep 23, 2020
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285
Battery Clearinghouse has the LG M26 packs back in stock (for as long as they last). These are greats cells for a great price, just requires some cleaning as they are in rubber packs of 20.
(I have no affiliation with Battery Clearinghouse, just a far of the cells).
 
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OffGridInTheCity

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Dec 15, 2018
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1,855
Battery Clearinghouse has the LG M26 medpacks back in stock (for as long as they last). These are greats cells for a great price, just requires some cleaning as they are in rubber packs of 20.
(I have no affiliation with Battery Clearinghouse, just a far of the cells).
And I see the RING packs are back after a hiatus for a month or 2. These are also great cells for the price in my opinion - I have a couple of thousand of them now :)
 

Dr. Dickie

Member
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Sep 23, 2020
Messages
285
Ye sure you are no affiliate and just a fan. I know how you are you want me to buy another 1500 cells so I can build a 5th 14s80p. You know how I just can't pass up a good deal.
Wolf
They did up the price a bit (from 80 to $120 a lot), but still a good deal.
The important thing is, I now have enough cells to up my battery capacity by 1/2.
I am back to tearing apart packs and processing cells.
 
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OffGridInTheCity

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Dec 15, 2018
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I am back to tearing apart packs and processing cells.
Yea - I'm at a cross-roads. My battery bank is running just under 40% DOD. Do I continue and try for 20% DOD or 10% DOD? Will the years drag the cells into uselessness regardless of DOD?

There is clearly a curve of DOD vs life - but what does the curve look like at 10, 15, 20years. It could be that the age of the cells renders the DOD vs life-span meaningless - and I just don't know how to think about it properly... to answer the question of whether I should continue.
 

Dr. Dickie

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Sep 23, 2020
Messages
285
Yea - I'm at a cross-roads. My battery bank is running just under 40% DOD. Do I continue and try for 20% DOD or 10% DOD? Will the years drag the cells into uselessness regardless of DOD?

There is clearly a curve of DOD vs life - but what does the curve look like at 10, 15, 20years. It could be that the age of the cells renders the DOD vs life-span meaningless - and I just don't know how to think about it properly... to answer the question of whether I should continue.
I am with you.
If I was to start again, I would go with LeFePO4 cells.
Right now, the battery only goes down less than 1/3 of the voltage--from 4.02V a cell to about 3.88V (less than 1/3 of the SOC given where that is in the curve). And it is possible that if I increase it, I still might only get another 4 or so years out of it--especially the way I did not know what I was doing in processing cell originally.
But, I am learning a lot, so I power forward and will figure the rest out as it comes.
 

cak

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Mar 14, 2021
Messages
87
to answer the question of whether I should continue.
You know the answer, MORE!!!! always more :) Once you have your house powered then what about your lawn tools(I am electrifying a tiller/walking tractor), What about your car, Rebuilding power tool batteries, electric bike, electric ATV/UTV, portable batteries for camping, electrify your RV or tiny house...... :D
 

cak

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Joined
Mar 14, 2021
Messages
87
Battery Clearinghouse has the LG M26 medpacks back in stock (for as long as they last). These are greats cells for a great price, just requires some cleaning as they are in rubber packs of 20
Have you, or anyone else, compared these LG M26 to the EVE 2550? I got loads of the EVE when they were in the other form factor and have had great results with 99% testing like new. The EVE are significantly cheaper that the LGM26 in the rubber pack and the clean packs are even more expensive. The only thing I noticed is that the casing is somewhat thin because I blew through a couple cells when building packs using a diy spot welder. Now I have a Kweld and would recommend anyone else to skip all the other types of welders because I tried them all and even the similarly priced Chinese ones suck compared to the Kweld.
 

Dr. Dickie

Member
Joined
Sep 23, 2020
Messages
285
Have you, or anyone else, compared these LG M26 to the EVE 2550? I got loads of the EVE when they were in the other form factor and have had great results with 99% testing like new. The EVE are significantly cheaper that the LGM26 in the rubber pack and the clean packs are even more expensive. The only thing I noticed is that the casing is somewhat thin because I blew through a couple cells when building packs using a diy spot welder. Now I have a Kweld and would recommend anyone else to skip all the other types of welders because I tried them all and even the similarly priced Chinese ones suck compared to the Kweld.
Haven't tried to EVE. When I got the M2 medpacks, they were selling for $0.50 a cell. I have not see any cheaper than that. But since I build my powerwall all from these cells, I stick with them for homogeneity of IR and capacity.
I could not get the K-weld (could not find anyone selling it in America), I have been very pleased with the Malectrics Arduino welder (I welded 32 AWG wires in my packs--to sever as fuse.28AWG wire on the negative side).
 

floydR

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Aug 23, 2017
Messages
1,352
I could not get the K-weld (could not find anyone selling it in America)
It has been explained how to order a KWeld many times both in the above FB page and here in the forum. Either message Keith "18650 Heat Shrink & Cell Holders INC" on FB, or email him 18650shrink@gmail.com he sends invoice pay with paypal You should have it in less than a week if in stock. none in stock at the moment https://docs.google.com/spreadsheet...iOhUy8FMaZx2wtOEfIcSR6hR84UddIj8UPXhmhg#gid=0
 

Dr. Dickie

Member
Joined
Sep 23, 2020
Messages
285
It has been explained how to order a KWeld many times both in the above FB page and here in the forum. Either message Keith "18650 Heat Shrink & Cell Holders INC" on FB, or email him 18650shrink@gmail.com he sends invoice pay with paypal You should have it in less than a week if in stock. none in stock at the moment https://docs.google.com/spreadsheet...iOhUy8FMaZx2wtOEfIcSR6hR84UddIj8UPXhmhg#gid=0
Thanks, not on FB. But I am very happy with the Malectics welder. And I got the Nanowelder (crowd fund raising), got it THE DAY I was done welding up my packs. Got to break it out and give it a try.
 
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