Features 1、10PCS IN 1 SET: Including 10pcs 2S battery charging modules, small and compact, sufficient quantity for easy installation and replacement. 2、APPLICABLE BATTERY: The battery charging board is widely compatible with nickel metal hydride and nickel cadmium battery, convenient and practical. 3、EXCELLENT PCB: These battery charging modules use excellent PCB board, wear resistant and durable, with stable and reliable performance. 4、GOOD PROTECTION: With fine workmanship, these charging modules have excellent protection on the battery, improves the charging efficiency. 5、COMPACT SIZE: These NiMH NiCd battery charging boards have compact size, easy to install, take up little space, have little interference. Specification Item Type: 2S Battery Charging Board Material: PCB Color: Black Input Voltage: DC 4.5V-5.5V (DC 5V is recommended) Charging Voltage: 2.7V-3.4V Charging Current: 230mA-240mA Package List 10 x Battery Charging Board