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New German Powerwall - by Walde ... at forest
#11
(06-22-2018, 11:54 AM)Walde Wrote:
(06-22-2018, 11:10 AM)cadric Wrote: Hey Walde,

I've also started with my Powerwall this year.
I see you got some e-bike batteries.
I also got some - Brand Fisher - like the left on on your picture.
Question: how do you get the cells out of the cage, as mine are not easy to dissassemble.
Additionlay, mine are flooded with some black rubberliquid, big mess to get rid of.
ATM I have to use mechanical force to get the cells out, but they loose their insulation with this methode.

regards

cadric


Hi Walde

ich hab in diesem Jahr auch mit dem Bau einer Powerwall begonnen.
Ich hab auch einige e-bike Akkus, gleiche wie der Linke auf deinem Foto, Marke Fischer.
Frage: wie bekommst du die Zellen aus ihrem Käfig, ohne sie zu zerstören? Meine lassen sich nicht zerlegen.
Zusätzlich sind meine auch noch mit einer schwarzen, gummiartigen Flüssigkeit eingegossen, ziemiche Sauerei, die zu entfernen.
Zur Zeit entferne ich die Halter Pol für Pol mit einen Holzmeißel, um dann die Zellen, die Parallel geschaltet sind separat herauszutreiben.
Dabei verlieren sie natürlich ihre Isolierung.

Gruß

cadric
 

Plastik Werkzeug und eine Kombizange und einen Seitenschneider + Lederhandschuhe / Schweißerhandschuhe

Plastic tool and a combination pliers and a side cutter + leather gloves / welder gloves

MfG Dirk
Hi Dirk,

thanks for your reply, but I was more interested, If you have a speciall solution to open the cages.
But I will ask in a seperate thread, for ideas. Thanks.


cadric
1. Installed Grid-Tie system: 55 x 300Wp BenQ, SMA Tripower 15000-TL30 (18-east/17-south/20-south)
2. Upcomming Offgrid system: 25 x 300Wp Solarworld, rest tbd
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#12
the first 5 BMS boards ... made by yourself DIY

9 pieces are still missing ... Tomorrow we continue

DIYBMS from https://github.com/stuartpittaway/diyBMS





Korishan and BlueSwordM like this post
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#13
Three more finished now there are already 8 pieces.






BlueSwordM and jdeadman like this post
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#14
Impressive! Nice work bud
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#15
14 pieces ready Now the test runs can start with the battery packs

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#16
first test






it works !!! Big Grin
Ibiza, Christian Schneider, jdeadman And 3 others like this post
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#17
Ok 14 modules are running now.
Unfortunately had 3 defective NTC.
Now let's see what the next 24 hours bring in the test run


Christian Schneider and RikH like this post
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#18
Update: 01.12.2018

EMONCMS on a Pi 3B with DIY BMS on test run







Test Pack 14S4P / 57,4v (4,1v/S1)





Load test with 60W *

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