Cherry67 said:Modular, flexible, and professional finish.
Mazlem said:Interesting. Do you have anything to connect or support the battery boards on the opposite end of the main board?
wim said:Nice work .... looks good.
Is there some kind of cell level fusing ?
yoeri_w said:Looks really nice and interesting cause I don't like the soldering on cells. Most likely due to my handling, I'm quite handy but soldering 18650's doesn't really go well for now.
Have you already been able to test out a full pack ? How is the heat dissipation at the terminals from the cell holders ? I remember Jehugarcia was experimenting with something similar and when he tested the pack under load, the terminals got way too hot.
So hopefully you're design got that sorted out and you're willing to share the PCB layouts ?
I certainly would be interested.
Jon said:Looks like a well thought out, neat and interesting design.
I hope testing goes well.
Daveyboy said:This pcb style really interests me. Looks good. Fuses easier to work with. Completely modular and easy access to each cell.
I take it that whats shown in the photo is all parallel? and you will have 14 of these in series for a 14S80P wall?
Also, how do you calculate the track widths for the pcb? I use the nickel strip charts for my own nickel strip build. Is there an equivalent for pcb tracks?
Headrc said:Nice ....how did you design and produce those boards?
2 x double sided, so 4 traces total? Sorry for my dumb questioning, i'm just interested in learning about what you are doing. It's something I might have a go at when i'm finally done with my more traditional style powerwall and I need to move to another section of wall. It sure looks easier than what i'm currently doing. I'm designing my system to handle 1 amp per cell, and 80 amps through a pcb just seems a lot to me with my very little knowledge of pcb'sgrumble said:The backplane pcb is just 2 double sided traces, in 2oz copper, for what I'm hoping will be ample for my 48V system.
Cell pcbs are just 2 double sided traces in 1oz copper.
Daveyboy said:2 x double sided, so 4 traces total? Sorry for my dumb questioning, i'm just interested in learning about what you are doing. It's something I might have a go at when i'm finally done with my more traditional style powerwall and I need to move to another section of wall. It sure looks easier than what i'm currently doing. I'm designing my system to handle 1 amp per cell, and 80 amps through a pcb just seems a lot to me with my very little knowledge of pcb'sgrumble said:The backplane pcb is just 2 double sided traces, in 2oz copper, for what I'm hoping will be ample for my 48V system.
Cell pcbs are just 2 double sided traces in 1oz copper.
Also, what are your thoughts on trace fuses? Too much of a fire risk maybe?
Like in the photo of the attached: https://electronics.stackexchange.c...in-sections-of-copper-traces-be-used-as-fuses
michaell said:What for BMS ?