Beginners Guide to Processing 18650 Cells | Cell Database


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The beginning of my powerwall
#1
Hello, I am posting this so that I have evidence to my cell count, so far I have just shy of five thousand. I started collecting laptop batteries a few months ago, and have been looking forward to setting up and running my own powerwall. I am currently in the process of closing on a new home and I can't wait to start getting my powerwall setup A.S.A.P. I work two IT jobs which grants me access to a ton of 18650's. I will post a few pictures of my progress so far, and keep it updated as things progress.



This picture is of my tested and cleaned cells, I will be using the orange cells as my exterior. My packs will consist of 120 cells, all the cells upon the desk are above 2000 mAh.


Here is my pile of soon to be cleaned cells, they have been tested as good, but they have not been tested for capacity.


Another box of my exterior cells.


My first attempt at some packs, was looking at 100 cells a pack but decided on 120, I also realized I had way more orange cells than green.  Undecided
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#2
Holy mother load! Welcome. Please keep us updated.
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#3
All those cells!!! NICE! Big Grin
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#4
Is it just me that expected something to show in that wall of cells? Smile Like a text or figure hehe
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Follow me! >> YouTube / Forum system setup / My webpage  Diy Tech & Repairs

Current: 10kW Mpp Hybrid | 4kW PIP4048 | 2x PCM60x | 83kWh LiFePo4 | 10kWh 14s 18650 |  66*260W Poly
Upcoming: 14S 18650~30kWh | Automatic trip breakers, and alot more
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#5
(06-05-2017, 06:21 PM)daromer Wrote: Is it just me that expected something to show in that wall of cells? Smile Like a text or figure hehe

I passed up a perfect opportunity.  Tongue
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#6
(06-05-2017, 01:47 PM)Off Grid Power wall Wrote: Hello, I am posting this so that I have evidence to my cell count, so far I have just shy of five thousand. I started collecting laptop batteries a few months ago, and have been looking forward to setting up and running my own powerwall. I am currently in the process of closing on a new home and I can't wait to start getting my powerwall setup A.S.A.P. I work two IT jobs which grants me access to a ton of 18650's. I will post a few pictures of my progress so far, and keep it updated as things progress.



This picture is of my tested and cleaned cells, I will be using the orange cells as my exterior. My packs will consist of 120 cells, all the cells upon the desk are above 2000 mAh.


Here is my pile of soon to be cleaned cells, they have been tested as good, but they have not been tested for capacity.


Another box of my exterior cells.


My first attempt at some packs, was looking at 100 cells a pack but decided on 120, I also realized I had way more orange cells than green.  Undecided

What do you use the trowel for?

Thanks,

-John-
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#7
I use the trowel to clean the hard glue off of my cells, that was just a hard flat tool that was in reach, I was usually using a letter opener. I can post a picture of my process. Big Grin
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#8
(06-05-2017, 07:13 PM)Off Grid Power wall Wrote: I use the trowel to clean the hard glue off of my cells, that was just a hard flat tool that was in reach, I was usually using a letter opener. I can post a picture of my process. Big Grin

I would love to know more about your process!  Given the number of cells you have processed, you must have a few tricks you have figured out.

Thanks,

-John-
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#9
holy shit, that's a bunch of cells... what about your average capacity and junk rate?

Have sun!
Oliver
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Cells tested: 4238 (overall: 8077 Ah, average: 1906 mAh)
Cells in production: 2240 (overall: 4704 Ah, average: 2100 mAh)
Powerwall config: 7s320p, 672 Ah, 16 kWh
What's left: my current grid consumption

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#10
(06-05-2017, 01:47 PM)Off Grid Power wall Wrote: Hello, I am posting this so that I have evidence to my cell count, so far I have just shy of five thousand. I started collecting laptop batteries a few months ago, and have been looking forward to setting up and running my own powerwall. I am currently in the process of closing on a new home and I can't wait to start getting my powerwall setup A.S.A.P. I work two IT jobs which grants me access to a ton of 18650's. I will post a few pictures of my progress so far, and keep it updated as things progress.



This picture is of my tested and cleaned cells, I will be using the orange cells as my exterior. My packs will consist of 120 cells, all the cells upon the desk are above 2000 mAh.


Here is my pile of soon to be cleaned cells, they have been tested as good, but they have not been tested for capacity.


Another box of my exterior cells.


My first attempt at some packs, was looking at 100 cells a pack but decided on 120, I also realized I had way more orange cells than green.  Undecided
Hahaha just noticed the fan keeping the sanyos cool!
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Cell progress: 2016/10/17:
180cells@2.0
600cells@2.1-2.6a
70cells@2.7a+

Projects:
Mobile PowerBox
8Kw Powerwall
Insight Parallel PowerPak
1Kw PowerBlade
PowerRack (concept)
12v LED Sconce
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