Arduino Fans

Description

5V 2.1A Power Bank Charger Charging Circuit Module Board Step Up Boost Power Supply Module 2.1A Dual USB Output

• 100% New and High Quality Power Bank Charger Circuit Board
• Input Parameter: 5V / 1A
• Input Interface: micro USB interface
• Output Parameter: double USB output: 5V / 2.1A
• Conversion Rate: 90% average
• 4 LEDs Battery Capacity Indicators
• 1 White LED Flashlight
• Size : width 2.6 cm, length 6.9 cm
• Note: The installation and usage of these modules require some basic knowledge of electronics, if you don’t know how to install, please don’t buy it.

Battery parallel requirements between 3.7-4.2V can work properly, the maximum can not exceed 20,000 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 Clecius—50Clecius),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%.

Main board Protection Function:overcharge protection, over discharge protection, overcurrent protection. Power does not need protection board.If you have it, please unload.

Installation Introduction:
1.Circuit board B- connects power negative, B+ connects positive.Don’t inversely connect,it will result in burning of board. Power is series soldering,so please make sure the insulation between power and circuit when install the battery
2.Double press the switch,flashlight LED light starts,then double press turn it off
3.Double press starts flashlight,then press once,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 polarity will burn.