The battery builders club

[yoyotinker]

How do single-piece PCB packs hold up over time? Are they any more susceptible to vibrations compared to a flat pack?

@hummieee

I use silicone. I feel this battery built w the pcb, at least this design, there’s a lot less stress on the nickel when the cells are being help n not the pcb.

rideNEO flexible battery pcb

Totally agree with this right here. It’s a drawback of any PCB based design, but often times we have packs being built without any frame with P-groups being held together with nickel, tape, & hope. I’ve been using a combination of liberal silicone for dampening/adhesion of cells to the PCB (insulating the positive copper pours that run under cells) + strapping with kapton + heatshrink. So far so good, and this is similar to how Ernesto is building his production batteries in the Kaly 2,0 as we…

@hummieee

Wait what the hell did I write. I mean if the cells are held and the pcb just floats glued to the cells I bet that is really durable. But this battery can be really fragile and I bet easily damaged if just squished in a box or held by the pcb. I think it has to be held by the cells.

This is all I found regarding PCB pack’s durability over time.

Wondering if a cell holder design could be combined with the PCB pack to reduce nickel stresses? Something like the snap together frames maybe?