Korishan said:
Hrmm, still curious as to how much this thing is gonna cost.
it's really dependat on where you buy things.
1 4x holder on ali can vary fron 0,56 to 0,89
1 glass axial fuse cost 0,03 on aliexpress
car fuses 50A (0,50)
pcb (we are looking about it)
so :
0,90 x 4 = 3,6
0,03 x 16= 0,5
car fuse = 0,5
pcb = ??
cost per cell is 4,6/16 = 28 cents per cell extra
i've seen other pcb module 9 for 7 cells.
Seems a good extra for safety end other featuers
temp sensor? (we are trying to add it on pcb and "talk" to our management system)
4x 0,5 = 2
yes, is not the cheaper version, but it's a easy way to stack cells
i'm doing 4/5p Per holder,
ajw22 said:
Rough estimate for PCB+4xholder+fuses when ordering 100 units from Aliexpress/PCBWay: $8 USD. $6 if placing cells on both sides of a 1/2 size PCB. So a 14S160P battery would cost $840 ~ $1120 without the cells... I'd say not so interesting for Powerwalls, considering the simple plastic brackets cost just $80 total and probably involves a similar amount of assembly effort. Perhaps for a dis-/charging rig.
how much work for replace a cell?
this a easy swap and replace.
time for building :
in 10 minutes i ve soldered 4 holders + 16 fuses and 1 car fuse. and i'm not a "professional" in soldering