18650 UPS module case (5/9/12V)
This is a case for UPS module that I bought on AliExpress: 15W 3A 18650 Lithium Battery Charger Module DC-DC Step Up Booster UPS Uninterruptible Power Supply - https://s.click.aliexpress.com/e/_Eue6MmZ
I remixed the original model and improved it a little bit, here's a list of changes:
-Added more space inside the case, so you don't have to force fit the module into the case, making it more usable in case you need to do some modifications - solder wires, replace batteries, etc.
-Added more material to the top and to the bottom, so it's not flexing so much and is safer to use (lowering chances that impact damages batteries or electronics inside)
-Added chamfer around the edges
-Reduced size of holes and screws required, so there's more material around the holes for the screws to hold on
-Removed unnecessary empty spaces inside to make it more solid
Bill of material:
2.5 mm x 14/16/18mm self taping screws (4 screws)
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