A 100w USB-C Battery Back made for 18650s, with a Switch and 2 additional USB-A ports.
The pack is made for an 4s4p battery configuration.
I have gotten a USB-C 100w Soldering iron and it holds up Ok, albeit struggling at higher loads (but that may be due to cheap Aliexpress USB-C PD Board… I need to do more testings) but otherwise works for what I want to use it for.
I'm pretty new to the world of making electronics and this was my biggest project that I have ever made (and therefor my first time making a battery bank).
I printed the outer box in PLA and the battery holders in ABS (for extra rigidity), but just testing it, it may help to at least build the lid in ABS and the USB-C board seems to get somewhat hot. It is also sized for M3x20 screws for the latch and Hinge.
Parts List:
3D Printed Parts
Copper Wire (I used 12AWG for the main parts, but it was way too big and barely got it to fit… You'll also want some smaller wire for the smaller parts like the USB-A Ports)
16x 18650 LiPo Cells (Make Sure you choose high enough current ones)
Spot Welder to weld batteries together
100w USB-C + BMS (Aliexpress)
Voltmeter/SOC Meter (Aliexpress)
2x USB-A Ports (Aliexpress)
Mini Rocker Switch (Aliexpress) (I originally purchased the one I used from Amazon, but these look like the same size, but the hole can be easily resized in Fusion)
At that point, if you want to omit any parts, it should be decently easy to modify the Fusion files.
The author remixed this model.
Heavily inspired by the original, started from scratch with the Rugged Box and built from that.
Differences include, size for 18650s, +Switch, +2x USB-A Ports.