SINGLE USB Power Bank Circuit With LED Indicator Input DC 5V 1A Micro USB Socket Output DC 5V 1A BMS Protection Lithium Battery 3.7V 14500 18650 Battery Mobile Phone Charging Module

Specifications:

• Input Parameter: 5V/1A
• Input Interface: micro USB
• Output Interface: dual USB output: 5V/2A
• Conversion Rate:90% average

Charging Display:

• When charging, battery level 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
• Module does not need battery protection board as it has inbuilt battery protection system.

Installation Introduction:

• 1.Circuit board B- connects power negative, B+ connects positive. Don’t inversely connect, it will result in burning of board. Make sure there is insulation between power and circuit when install the battery
• 2. 2A output is not continuous current, it changes according to USB connecting load, automatic current output as per load
• 3. If battery is connected incorrectly, the reverse polarity will burn the circuit. So, make sure to check the battery polarity when connecting.

Special Instruction:

• When connecting the board for the first time, connect the battery and then connect the micro USB charger and charge the battery to full capacity before using.
• It is required to prime the IC, so that it starts and shuts down accurately