18650 battery 3.7V to 5V2A boost module DIY charging treasure/mobile power motherboard/circuit board

DIY mobile power/charging treasure circuit board

Product characteristics:

Level 1.4 LED lights display the power, and the non -working state intelligent shutdown;
2. Built -in lithium battery protection IC, there are overcurrent, overvoltage, and under pressure protection;
3. Double USB output;
4. Motherboard size: thick 8mm*width 32mm*69mm long.

Basic parameters of the product:

Enter port: Microsb (Android Exit)
Input requirements: 5V constant voltage power supply can be used for charging input power, the most matched charger is 5V1A or more
Output port: USB
Output parameters: 5V1A/5V2A

Requirements for charging batteries:

Available batteries: 18650 battery, mobile phone battery, tablet battery, MP3 battery and other 3.7V-4.2V polymer lithium batteries. It can be powered by single section (chip), or it can be powered by multiple sections (chip).To.(Note: Increase the capacity in parallel, the series is to increase voltage, only use in parallel!)
Can be parallel 2-6 sections 18650 battery!IntersectionIntersection
Do not use batteries: dry battery, battery, 1.2V can recharge the battery, nickel -metal hydride battery, 3.2V iron polymer lithium battery, etc.

Pay attention to the following points when installing the product:
1. The battery should be parallel, and the voltage should not work between 3.2-4.2V. Both 18650 flat head and polymer battery can be
2. The battery is connected to the motherboard B+ negative B-, and the main board must be burned;
3. New and old batteries and model brands cannot be mixed with batteries.