12V供电 铅蓄电池充电模块（充电电流200-400mA）原理图及PCB图，附带指示灯，充满保护，器件清单。-12V rechargeable lead-acid battery power supply module (charge current 200-400mA) and PCB schematic diagram, with light, full protection, the device list.

ATTiny261 NiMH battery charger - schematic + pcb-ATTiny261 NiMH battery charger- schematic+ pcb

BATTERY LEVEL MONITOR PCB SCHEMATIC DIAGRAM

Six-cell LiFePO4 battery balancer project. Includes code for ATTINY24 and PCB design.-Six-cell LiFePO4 battery balancer project. Includes code for ATTINY24 and PCB design.