Hi all, I'm working on my 18650 battery holder project, I red some relevant issues I face and trying to solve being discussed here. Below are some of the features I built into my battery holder :
- Cell Level Fuse (just positive ends). Negative ends are all connected.
- Stainless Steel Springs (just positive ends) apply cells contact pressure only, insulated, DO NOT function as conductor.
- Durable Materials, fiberglass and aluminium (functions as frame structure and bus bars).
- Easy to Open Battery Pack, for maintenance or inspection, bad cell/fuse/BMS replacement.
- Modular Design, one module is 12V (4S), scalable to 24V 36V 48V or higher.
- Easier To Build battery packs, eliminate the soldering/spot welding on cells contact.
I'm still waiting for some parts to complete the "module extension" (12V to 24V 36V 48V...so on), I try not to create "bottle neck" for current flow when scaling up the voltage of the modules. I hope the parts arrive soon and I'll show how to stack up the modules.
I have some short info on my blog which is still under development
https://leanmakes.wixsite.com/18650-battery-holder
Feel free to let me know if you see any flaw in the design at this stage. Thanks!
- Cell Level Fuse (just positive ends). Negative ends are all connected.
- Stainless Steel Springs (just positive ends) apply cells contact pressure only, insulated, DO NOT function as conductor.
- Durable Materials, fiberglass and aluminium (functions as frame structure and bus bars).
- Easy to Open Battery Pack, for maintenance or inspection, bad cell/fuse/BMS replacement.
- Modular Design, one module is 12V (4S), scalable to 24V 36V 48V or higher.
- Easier To Build battery packs, eliminate the soldering/spot welding on cells contact.
I'm still waiting for some parts to complete the "module extension" (12V to 24V 36V 48V...so on), I try not to create "bottle neck" for current flow when scaling up the voltage of the modules. I hope the parts arrive soon and I'll show how to stack up the modules.
I have some short info on my blog which is still under development
https://leanmakes.wixsite.com/18650-battery-holder
Feel free to let me know if you see any flaw in the design at this stage. Thanks!