Alteration of the screwdriver’s battery for 18650 lithium cells. The battery is used without balancing and is charged using a Chinese 4-cell charger. For this, the battery compartment is made collapsible. As conductive contacts, a 2-layer printed circuit board with a continuous polygon was used. Thickness FR4 - 1.5mm.
materials:
2x 2-layer FR-4 1.5mm PCB (~20mm35mm)
1x ~250mm wire AWM1007 VW-1
6x leaf spring battery contact (Digi-Key Part Number) 36-1107-1-ND
| accu_box.STL | 102.2KB | |
| bosch_accu.STL | 101.9KB | |
| lock.STL | 57.6KB | |
| shell.STL | 10.4KB | |
| source_solidworks.zip | 1.1MB |
