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Dennis' 14s200p(?) x 2. powerwall in Denmark
#1
Big Grin 
Hello guys...

My plan is building a 14s200p x 2. I got the cells. Just need to test the last 2000 cells Wink. The build will be in a rack. I will add pictures later. I got the ABB S5N from US. Pretty good deal, so I can shut down the batteries, if anything goes wrong. 

Anyways, here is some pictures of the progress. 

Shelf's for my battery packs: Will be mounted in a rack (Like Average Joe, but higher) The 30x30mm are aluminum. The shelf is from Legrand, and is a metal sheet made for cables mounted on a wall. The aluminum i got from Motedis. German site, also in english. Good fellow.



This is how my battery packs will look like. 7x6mm2 wire in each Anderson plug. Let's do some math. 6mm2 is equivalent of 9/10 gauge. Let's say 10, just to be sure. When you put that into the gauge Calculator it equals 5 gauge. So the two rows on the side of the batteri is 5 gauge (16.8mm2) and the three middle once are 7 gauge (10.6mm2) 

5 gauge / 16,8mm2 can do 79A.
7 gauge / 10,6mm2 can do 60A.

So the Anderson is rated for 175A, but I use one for plus side and one for minus side. So my 7x6mm2 shouldn't be any problem. Do you think it will? Write a comment below.



Testing batteriers: 
  

90 kilos a few weeks ago:


Home made tp4056 rail:


Power (Almost done) for rail:
  

Power box for 10x Liitokala


New stack of batteries, think I'm set on batteries now (28-10-18) Big Grin

Jaster, hbpowerwall, jdeadman And 3 others like this post
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#2
Not cheap, but I just bought one of these:
ABB 160A DC breaker
It's a 160A DC-breaker (actually built for high voltage DC solar arrays) with what seems to be a shunt trip. Mine is still underway, so we'll see...
Looks like you've make quite the start on your powerwall, keep it up!
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#3
Looking good. I can remember those days not so long ago, charging 9 x 18650s as I only had two chargers. Slow process but you will see the benefit when you finish testing them all and find the bad cells. Good luck. 200P ... nice Big Grin
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#4
(10-13-2018, 09:10 AM)wimpie007 Wrote: Not cheap, but I just bought one of these:
ABB 160A DC breaker
It's a 160A DC-breaker (actually built for high voltage DC solar arrays) with what seems to be a shunt trip. Mine is still underway, so we'll see...
Looks like you've make quite the start on your powerwall, keep it up!

Ahh, nice mate. I'll take a look at it. But I'm starting to realize that these breakers arent cheap. Unless you get a used one.


(10-13-2018, 11:46 AM)lordxenu Wrote: Looking good. I can remember those days not so long ago, charging 9 x 18650s as I only had two chargers. Slow process but you will see the benefit when you finish testing them all and find the bad cells. Good luck. 200P ... nice Big Grin

I hope! Big Grin Let's see how many good cells I have when I'm done testing. Big Grin Might upgrade on a later time.
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#5
nice keep it up!
what kind/model of battey packs are your recycled cells from?
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#6
(11-06-2018, 10:45 AM)collinkoolen999 Wrote: nice keep it up!
what kind/model of battey packs are your recycled cells from?

Hi collins. 

I've got approximately 300 kilo of reused laptop batteries. And i got a auction for 270 kilo of used e-bike batteries. So have ALOT of low capacity batteries. Pretty many bad once among those laptop batteries.

Ripping those nikkel strips off E-Bike batteries, while watching HP powerwall and DIY tech and repair! 

 
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#7
Shelfs are taking shape. Just need to cut the grid for the top and measure out the shelf height in the rack. 

Also need to level out the rack, so it doesn't tilt forward (Not good)

PaulDane, RikH, Korishan And 1 others like this post
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#8
My rack cabinet almost ready for my packs. The animated picture, was my layout from the start and actual pictures are yes.. the way it formed out.
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