Dual USB 5V 2A Power Bank Charging Module/Charging Circuit Board/Step Up Boost Power Supply Module

With a torch LED lamp (long press power button to turn ON or OFF)
Module has multiple safety circuits
Output voltage and current is stable, to protect USB devices during charging
Module has protection from overcharge,overdischarge,short circuit and no need to worry about the time of charging
Battery Level Display:4 blue LED light to display capacity, in non-operating state, intelligent power off

Power Bank Module 5V 2A Power Bank Charger Module Charging Circuit Board Step Up Boost Power Supply Module 2A Dual USB Output 1A Input Product Introduction: 1.Input Parameter: 5v/1A 2.Input Interface: V8 interface micro USB 3.Output Parameter: double USB output:5v/2A 4.Conversion Rate: 90% average 5. Width 2.6cm length 6.9cm Battery parallel requirements between 3.2-4.2V can work properly, the maximum can not exceed 200,000 mA Safe Design: 1.Power has designs of overcharge, over discharge, short circuit protection, does not need to worry about the time of charging 2.Intelligent Output. When equipment is fully charged, it will stop charging automatically to prevent from overcharging 3.Power has multiple safe designs. Output voltage and current is stable, never to damage user's device 4.Operating temperature range is wide (-20 Celsius¡ª50 Celsius),can provide over temperature protection Function Feature: with a highlight LED lamp (long press or double click power key can start) Electricity Quantity Display:4 class LED light display electricity quantity, non-operating state will be intelligently off. Charging Display: When charging 0-25% one light is on, other lights off; 25%--50%, the second light flashes,the first light is continuously on;50%-- 75%, the third light flashes,front two lights are continuously on;75%---100%;the fourth light flashes, front three lights are continuously on. And four lights are on charging to 100%