✅ {Portable Power Supply}: This 18650 powerbank module is a portable mobile power supply that supports voltage output 3V and 5V
✅ {Input Connector}: Micro USB port with charging current of 600mA, with power and operating mode indication via on-board LEDs
✅ {Battery Protection}: Equipped with a protection circuit with over-current, over-voltage, under-voltage and short circuit protection. Please be mindful of the polarity of the battery.
✅ Size of main board: 100x30x21mm, supports one (1) lithium 18650
✅ This product includes an E-Book that provides useful information on how to begin your project, it helps with a quick setup and saves time on the configuration process. We provide an array of application examples, full installation guides and libraries.