DeWalt Battery Box by secured-nor1

Last crawled date: 3 years, 1 month ago

Hiya!
I have designed 6AH battery pack for my Dewalt DCF880 impact wrench.
I used 10 X LG HG2 18650 batteries.
1 X Dewalt PCB (google)
1 X 5S2P 50A BMS
1 X DC Jack
There was no uppercase on thingiverse so designed my own and uploading here for anyone looking to built their own pack. It's not the best but it works for me. Please keep in mind that li-ion batteries are dangerous if you don't know what you are doing. It's also not a rocket science so please do your own research.
BMS works in the battery case. So it is responsible to charge all cells equally up to 4.2V each and 21V total.(5 series 2 parallel) Normally the BMS board is inside Dewalt origanal charger units but I feel that way more practical. There is also dewalt PCB board inside of the case. The pinouts make it easier and PCB also protects the batteries from getting low voltage etc.. So there is two 10K NTC sensor inside the case.
You can always change this design to your needs. I have remixed it with "Parametric Rugged box" design from thing:4757317 I have added Fusion 360 file and stl. You can use his box and size it to your needs than combine the uppercase of my design.
There are four M3 imbus(DIN915?) bolts that keep the cases together. You can always change it your needs. If I would have long screws I would hide the screws inside the battery case but all changes the case size so I thought M3 bolts enough for the job.
This is fresh upload / built version 1. I may change design if the case fail long term use. I have printed it in PETG because of its chemical resistance. ABS, Nylong, Petg, Hips,PP/PC are upto job.