Power Bank Charger Board Charging Circuit Dual USB Output 5V 2A

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

* Recommended Batteries : 3.7V (18650, 14500)

Safe Design

1.Power has designs of overcharge, over discharged, 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 are stable, never to damage user's device.

4.Operating temperature range is wide (-20 Clecius—50 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 segment array LED light displays 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%.   

Mainboard Protection Function: overcharge protection, over discharge protection, overcurrent protection. 

Installation Introduction

1. Circuit board B- connects power negative, B+ connects positive. Don't inversely connect, it will result in burning of board. 

2. Double press the switch, flashlight LED light starts, then double press turns it off.

3. Double press starts flashlight, then press once, the light will be lighting. Then touch once start SOS mode, and press one more time turn off LED.

4. 2A output is not continuous current, it changes according to USB connecting load automatic current output.

5. Insurance resistor. If battery connects incorrectly, the board will burn.