Features Durable material: the NiMH battery charging module is made of premium PCB, the board is strong, durable, wear-resistant and suitable for long-term use. High performance: the battery charging module has stable and efficient performance and excellent protection for the battery. Battery protection: the NiMH battery charger module supports battery protection, short circuit protection, safe and stable. COMPACT AND LIGHTWEIGHT: The battery charger board module is compact, lightweight, easy to install, simple and convenient. PRODUCT SPECIFICATIONS: Input voltage: DC 5-6V (DC 5V recommended), Charging voltage: 4.5V, Charging current: 1A. Specification: Item type: battery charging board module Material: PCB. Input voltage: DC 5-6V (DC 5V recommended) Charging voltage: 4.5 V. Charging current: 1 A. Package list: 2 x battery charging board module. Package List 2 x Battery Charging Board Module