I love your project :)
About PowerWall Bracket, is 2mm steel plate is enough to hold battery packs or need more or less thickness ?
i have 3900 cells (13S10P x 30) to fix on the wall ;-)
Thanks a lot
Thanks for the files for your powerwall bracket.
I didn't have idea to how to fix on my wall my 30 packs 13S10 ;-)
I just need to change some dimensions for my packs, wich free software can i use to modify ?
I know somebody who can cut this with the laser machine.
Thanks a lot
Yes you are right Offgridinthecity.
You can see on picture 3 packs, i have 30 packs like this.
I would like to fix all my 30 packs to my wall, what is the best way ?
Can i find support who had made for 18650 ?
Or must i build myself with wood or metalic ?
The packs you can see are 13S10P...
I've made a test between one 10 cells pack at 2,75V and the second at 4,20V, when i connect them together in parallele mode, i have 10A between the 2 pack, the highter is charging the lower until the two packs will have the same voltage, so my copper wire will be enough to carry the max amp...
As you can see in my pack, each block is made with 10 cells, no protection for theses 10 cells in parallele mode in each block.
I can't change this setting, it will be for me too expensive and too long to add one fuse on each cell, i have 3900 cells ;-)
All cells are the same with same...
I understand what you mean.
Before to connect the red wire i will take care that all cells have the same voltage to don't have high current during equilibrate.
I can use fuse wire to connect them but wich value ?
The maximum Amp for one cell is 7A, for one cell pack i will have max...
200A is for total of 30 packs because of BMS specification.
I think you are wrong, this copper wire i want to use is only here to connect 30 group of 10 first cells between them and for to equilibrate voltage between them, Amp Power is passing trough the all pack, not by this small copper wire...
Finaly, it will be better to attach all my pack in parallel mode and use only one BMS.
I will use 200A BMS and 4 active Equilibrer.
I will need your help for to know if i will do the right thing :)
I want to connect together my 30 pack with copper wire like you can see on picture, is it...
For my solar system i have 30 packs about 13S10 30Ah each.
My charger will produce 5000W 48V maximum to charge my battery.
I have a problem to select how i will manage theses packs with BMS system.
I wanted to add 1 BMS 15A per packs from China and use my packs in parallele mode...