Cheap Drill Battery 2.0

Hi,

This is a battery pack for those cheap drills that were produced around 2003 - 2015. Einhell, Defort, Ferm, Challenge, Amtech, ProUser, Speedway, Workzone, Power-G, Boston, Draper, XU1, Trades Pro and Top Craft (maybe Mastercraft) made (or relabeled) them. You can find pictures of those drills on the page of the original design.

This is a rework of my first cheap drill battery.

After printing and testing my first battery, I found it was a bit heavy and the parallel setup was too much for my drills. It can run forever without needing a recharge. I decided more voltage (4.2 x 5 = ~20)) from five 18650 cells and no cells in parallel would be better.

So this new thing is just that. Room for 5 cells and the same fitting on top. It uses the space more efficiently, is a lot smaller and provides more angry pixies to the drill.

I noticed my design will support 6 cells as well. (that was not intentional). I already tried it and my drills seem to be ok with 6 cells, bu