Aridom82
Learning addict
Hawkeye experts dont crucify me too harshly
This is my first Diy battery rack. Any advice on how to improve it or important things i may have missed?
- Thread starter Aridom82
- Start date
TomC4306
Solar Obsessive
Looks great 
.
.
Brett V
Mad Scientist
Very creative approach...I like it!
Brucey
Solar Wizard
Looks amazing. What are those shelf/supports made of?
Brett V
Mad Scientist
Looks like a repurposed C&D AGM rack
Daddy Tanuki
Solar Wizard
looks like metal square tubing. I don't thing sag is going to be an issue on this rack...
Aridom82
Learning addict
Thanks, that is 50x50x2mm welded square tubing.
Very nice!
Just to nitpick, the bms busbars have main cable on the end instead of the middle.
Just to nitpick, the bms busbars have main cable on the end instead of the middle.
Brucey
Solar Wizard
I guess my only suggestion is cover it all so terminals aren't exposed but if thats located in a controlled access space then would be a shame to not be able to appreciate its beauty
Post up pics of the gutters above.
Interesting choice using network cable gutters.
Not sure that meets code.
Interesting choice using network cable gutters.
Not sure that meets code.
Brucey
Solar Wizard
Oh and the end caps, don't seem to cover the whole face of the cell, the top edge is uncompressed.
Aridom82
Learning addict
Lets see.
48 cells went about 5.5k eur
3 jk bms around 300 eur
Dc breakers 240 eur
T fuses 180 eur
The 12 beefy springs costed me 100 bucks in total
Around 50 bucks of pla
And maybe 250 eur of other stuff (threaded rods, steel bars, screws, etc)
So in total about 6.6k, and for 48kwh that is 137.5 eur, lets call it 140 eur per kwh
Brucey
Solar Wizard
I think he was limited by the length of the BMS provided silicon cables
Aridom82
Learning addict
I thought that a little margin wouldnt be important, i can not fit objects more than 200mm in my 3d printer. I hope that is not too bad
Aridom82
Learning addict
I am thinking about making an enclosure for the whole thing. With transparent polycarbonate on the front of course
Aridom82
Learning addict
I totally missed that, but i can fix it with minimal effort
Brucey
Solar Wizard
Factory specs are compression against entire face, but you could possibly add a taller shim (of steel that's sufficient to not deflect) in the ends to get there?
Brucey
Solar Wizard
Maybe some midnite DC surge protectors for illumination insideI am thinking about making an enclosure for the whole thing. With transparent polycarbonate on the front of course
Aridom82
Learning addict
This is above, is still a bit dusty i have changed the Dc breakers under each inverter
I couldnt pass the com cable through it, is just too short.
Similar threads
