My 15kWh Powerwall

askmike72

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Joined
Oct 16, 2016
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3
  • hundreds of laptop batteries
  • 42 packs a 48 cells to a total of 2016 cells, 14 packs in a row, 3 parallel (14s3p configuration) for 51.8V
  • 50m copper busbar (10x1mm)
  • 7m copper connector bar (10x5mm)
  • 4032 cell holders for 18650
  • 30m fuse wire (0.2mm), 30m copper wire (0.6mm)
  • ~1kg solder
  • lot's of time...

Pack of 48 cells:
attachment.php


Powerwall:

image_jrpctx.jpg


Full installation with SMA Sunny Island 3.0H battery inverter and REC BMS:

image_nerkjo.jpg


image_yqwbyt.jpg
 
Nice powerwall.
Do you have a youtube channel or a website where i can go for more info or pictures?

Lux,
 
Looking good buddy ..
 
WOW, great work there! Its Christmas colored!

Thanks for posting the specs.

How long did it take you to go from collecting, to up and running?

How long have you been up and running, and did you have any unforeseen problems you had to work through?

-Elwood.
 
Hi, can you give more details on the Sunny Island <-> REC BMS interaction, does t work perfectly? what kind of problems/difficulties have you found along the way?
I'de appreciate any kind of info, since I'm considering this setup for my powerwall.
Thanks
 
That's a clean machine you got there sir! Look forward to the specs on what it is doing for you, how well it is doing it, and what would you change if you started all over. Ha, or just accept my high five ;)
 
Lookin good
 
askmike72 said:
Now with additional 1400 cells (total of 3416) and Batrium BMS

image_jzyemj.jpg
Guessing you have about a30kwh battery bank? Very cool!
I see unused shelf space... it an be quite addicting :)
 
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