Pack of 3 18650 Battery Expansion Shield V3 Micro USB Port, Supports 5V/2A 3V/1A Output Protection with Cable, Compatible Arduino, Raspberry Pi, Wemos

Portable Mobile Power Supply This power bank 18650 is a portable mobile power supply that supports the voltage outputs 3V and 5V. Input connection: The module has a micro USB port with a charging current of 600mA and a power and operating mode display via on-board LED. Battery Protection: Equipped with a protection circuit with over-current, over-voltage, undervoltage and short circuit protection. Battery Protection The power bank has 18650 battery protection circuit with over-current and over-voltage protection. Please pay attention to the polarity of the battery when inserting the battery. Special attention: the installation of the battery must be determined positively and negatively. You should follow the direction of "+" "-" on the board. 18650 battery is recommended This for 18650 Battery Shield V3 module can be used to power for Arduino or for Raspberry Pi and sensors.