Custom Black & Decker Drill Battery
This project replaces the original NiCd battery pack of a Black & Decker drill with a custom 3S2P lithium-ion battery pack built from 18650 cells.
Created by
Pegoku π
Tier 5
2 views
0 followers
Pegoku π
submitted Custom Black & Decker Drill Battery for ship review ago
Pegoku π
added to the journal ago
Added assembly images
I added images for how to assembly the project. I added the full exploded assembly, and a simple wiring driagram. Hope this is enough to get approved!
alexren β‘π
requested changes for Custom Black & Decker Drill Battery ago
hey - can you include some assembly / usage instructions with this since it's a mod to another device?
Tier: 5
Pegoku π
submitted Custom Black & Decker Drill Battery for ship review ago
samliu β‘π
approved Custom Black & Decker Drill Battery ago
Tier approved: 5
Grant approved: $0.00
Awesome project! Approved!
Pegoku π
submitted Custom Black & Decker Drill Battery for ship review ago
Souptik Samanta π
requested changes for Custom Black & Decker Drill Battery ago
As you are submitting it to Blueprint:
Add a BOM table in the README and include a bom.csv file in the root of the project with links for each part.
Follow the submission guidelines at:
https://blueprint.hackclub.com/about/submission-guidelines
make sure to check off everything listed there.
Once thatβs done ping me, youβll be good to go
Pegoku π
submitted Custom Black & Decker Drill Battery for ship review ago
Pegoku π
added to the journal ago
Charger + Publish
I the battery ran out, so I did a charging module so I can charge the battery. I used a boost usb-c 3S 1A module, so I can charge the battery with it. No need for a special charger, any 5V usb charger will work.
I also did the readme and reddit post.
Pegoku π
added to the journal ago
v0.6 - it works!
After many iterations and prototypes. It works!
The hardest part was to get everything to fit and not burn :P *.
I used a cheap 40A 3S BMS I had, it should be enough.
PS (*): while balancing the battery, I was using agw28 wires, as they didn't need to handle much current, I soldered the balance leads and an xt60. Problem. I didn't solder the xt60 correctly, and a bit of cable was outside of the connector, and when I unplugged it, I shorted it π . Luckily, the thin wire acted as a fuse...
Pegoku π
added to the journal ago
V0.3
I finished all the cad. I printed a prototype to check the fit, fixed some spots, and now it it mostly ready (still need to add the electronics and build the battery pack).
PS: I also did an assembly to be able to do the exploded view
Pegoku π
added to the journal ago
Work on the Bottom case part
I've designed the case part for the battery. After quite a bit of trial and error, it looks fine.
It is quite similar to the original, but it is a tiny bit smaller due to 18650's being smaller overall.
Now I'll design the top part!
Pegoku π
started Custom Black & Decker Drill Battery ago
1/31/2026 - Work on the Bottom case part
I've designed the case part for the battery. After quite a bit of trial and error, it looks fine.
It is quite similar to the original, but it is a tiny bit smaller due to 18650's being smaller overall.
Now I'll design the top part!
2/1/2026 - V0.3
I finished all the cad. I printed a prototype to check the fit, fixed some spots, and now it it mostly ready (still need to add the electronics and build the battery pack).
PS: I also did an assembly to be able to do the exploded view
2/3/2026 - v0.6 - it works!
After many iterations and prototypes. It works!
The hardest part was to get everything to fit and not burn :P *.
I used a cheap 40A 3S BMS I had, it should be enough.
PS (*): while balancing the battery, I was using agw28 wires, as they didn't need to handle much current, I soldered the balance leads and an xt60. Problem. I didn't solder the xt60 correctly, and a bit of cable was outside of the connector, and when I unplugged it, I shorted it π . Luckily, the thin wire acted as a fuse...
3/4/2026 - Charger + Publish
I the battery ran out, so I did a charging module so I can charge the battery. I used a boost usb-c 3S 1A module, so I can charge the battery with it. No need for a special charger, any 5V usb charger will work.
I also did the readme and reddit post.
4/9/2026 - Added assembly images
I added images for how to assembly the project. I added the full exploded assembly, and a simple wiring driagram. Hope this is enough to get approved!