Features With this module, you can power the Raspberry Pi and sensor simultaneously The output current of this model can reach 2A, which can power many control boards. The module has battery protection, overcharge or deep discharge protection function With 1 switch that can control the USB output, easy and convenient to use The battery box has an LED display function, green means full and red means charging Specification: Item Type:18650 Battery Holder Housing Material: PCB. Purpose: This module can be used to power Raspberry Pi and sensors simultaneously. The output current of this model can reach 2A, which can power many control boards. Charging port: Micro USB Charging current: 0.5 A. Output voltage: 5 ~ 8 V. Battery type: 18650 x 4 (self-provided). Package list: 1 x battery box, 1 x connection cable. Note: This product does not contain 18650 batteries. When installing, pay attention to the positive and negative poles of the battery, do not change the connector, please follow the + direction on the board and not the positive and negative direction on the battery holder Package List 1 x Battery Box 1 x Connecting Line