5V Micro USB DIY Step Up Power Bank Charging Module with Charging Protection

From the shop's description

5V Micro USB DIY Step Up Power Bank Charging Module with Charging Protection Make your own 5V (Approx) power bank from single-cell Li-po or Li-ion battery (18650 or 14500) with this Booster and Charger Power Bank Module. It is based on 134N3P IC. It comes with UBS A Receptor at one side (output) and another side is the USB Micro B receptor for the input charging source. Features: 1A (Approx) Power Bank Module Support Single Cell Lithium Battery, including Lipo and Li-ion Support 18650 and 14500 Li-ion battery Charging and discharging indication Charging: RED LED Blink fast Full Charge: RED LED Blink Slow Internally installed charging and discharging power MOS Preset 4.2V charging voltage, precision ±1% Max 8uA standby current Integration charging management and discharging management Intelligent temperature control and overtemperature protection Integration output overvoltage protection, short circuit protection, overload protection Integration overcharging and over-discharging protection Support trickle mode and zero voltage charging Supply Voltage: 3.7V~5.5VDC Maximum Charging Current: 1A (max) Output Discharge Voltage (Boost): 5VDC (Approx) Maximum Discharge Current: 1A Battery Cutoff Discharge Voltage: 2.9V Discharging Efficiency: 85% Dimension: 23mm x 18mm x 10mm Weight: 3gm Note: All the cells that are connected to the power bank module should be in a paraller, please don’t connect the cells in series as this will damage the power back module and cause a heating issue in it and eventually the power bank module will stop working. Note: This module is not suitable for running a DC motor, as the module is not able to handle the high current requirement of a DC motor but it can run a small DC Toy motor, whose current requirement is less than 100milli amp.