Battery Power Supply (18650)

thingiverse

This is my upgraded mobile power supply utilizing high-capacity 18650 batteries and a robust DPS5005 circuit board. This innovative design builds upon my previous model located at https://www.thingiverse.com/thing:2703776, which utilized AA batteries. It's essential to note that this version uses protected 18650 batteries, which have a slightly longer length than their unprotected counterparts. The switch allows users to seamlessly transition between the internal battery pack and an external power source via the provided connector. For efficient charging, it is recommended to use an external charger rather than integrating one into the case itself. This setup enables users to maintain a spare set of batteries, swap them out as needed, and continue uninterrupted wireless operation. Additional Components: * Digital Power Supply: RD DPS5005 (available at https://www.aliexpress.com/item/1000004290003.html) * Magnets with diameters of 4mm and heights of 3.5mm * M3 x 8 mm lens-head screw * Battery Contacts: + RS Components 324-7303 + RS Components 324-7325 * Banana Plug: https://www.aliexpress.com/item/32871905530.html * Switch: https://www.aliexpress.com/item/32692444364.html * Power Connector: https://www.aliexpress.com/item/32682440489.html WiFi Integration: AESP8266 board is employed to control the DPS5005 via serial communication. If there's sufficient interest and time, I will publish the PCB design and Arduino code on GitHub. When printing this project, modify line 10 of the OpenSCAD file to wifi=true and run the makefile accordingly.