2 layers100 × 25 mm
Rechargeable 5V power bank REV 0.52
shaharsery/5V-Power-Bank
This is an open source hardware 5V rechargeable power bank, intended for use with 1 Li-ion / Li-Pol 3.7V rechargeable battery cell.
69 parts9CC-BY-SA-4.0
Battery charger
9 boardsKiCad boards from 8 GitHub repositories tagged “battery-charger”, the most starred first; open any of them in PCBKit.
- 2 layers177 × 91.6 mm
Power Charg AUTO 12V C
Aleksei327/STM32G474-Power-Charger
Experimental STM32G474-based high-current battery charger and programmable synchronous buck converter. KiCad hardware and STM32CubeIDE firmware.
160 parts3 - 2 layers256.5 × 172.9 mm
- 2 layers30 × 11 mm
SmartGlasses PowerBoard
the-abra/ultra-compact-pmic-bq24074
A professional-grade Power Management Unit (PMU) designed for smart glasses. Optimized for minimal footprint and high efficiency using the BQ24074 PMIC.
14 parts1 - 2 layers40 × 20 mm
B MCP73831-BRK R1.0
Boardoza/Boardoza_MCP73831_Lithium_Battery_Charger_Breakout_Board
Compact single-cell Li-Ion/Li-Po battery charger module based on Microchip MCP73831 with USB Type-C input and adjustable charge current.
24 partsCC-BY-SA-4.0 - 4 layers100 × 80 mm
Charge board
Franzelfx/vertical-wind-turbine
Design study: a 3D-printed vertical-axis wind turbine on a timber post, charging a 3S Li-ion pack. Parts, circuit and figures generated by scripts with FreeCAD, KiCad and Blender. Nothing built yet.
85 parts - 2 layers200 × 120 mm
Dremel PCB1857 V1
Jajaho/Bosch-Dremel-GAL-1215-CV-repair
Reverse engineered schematics for PCB1857V1 of a Dremel 12 V battery charger.
57 parts - 2 layers60 × 40 mm
Tp4056-multicell charger
taguko/tp4056-multicell-charger
USB-C charger for small 2S/3S LiPo and Li-ion battery packs using TP4056 module.
14 partsMIT - 2 layers172.9 × 81.5 mm
