Power Bank Charger Module 5V 2A Charging Circuit Board

18650 Dual Micro USB 3.7V to 5V 2A Boost Mobile Power Bank DIY 18650 Lithium Battery Charger PCB Board Step Up Module With Led

100% high quality and branded 18650 Dual Micro USB 3.7V to 5V 2A Boost Mobile Power Bank DIY

18650 Lithium li-ion battery dual micro usb booster board feature

LED lights show the power, non-working state of intelligent automatic shutdown;

Dual USB output.

Built-in lithium battery protection IC, over-current, overvoltage, undervoltage protection;

18650 Lithium li-ion battery dual micro usb booster board parameter

Input port: MicroUSB (Andrews mouth)

Input requirements: 5V constant voltage power supply can be done to charge the input power supply, the most matching charger for 5V1A above

Output port: USB

Output parameters: 5V1A/5V2A

Size : 8 X 32 X 69 mm (H*W*L)

18650 Lithium li-ion battery dual micro usb booster board requirements for rechargeable batteries:

Available battery: 18650 battery, cell phone battery, flat battery, MP3 battery, etc. 3.7V-4.2V polymer lithium battery can be single section (chip) power supply, can also be multi-section (chip) parallel power supply (not in series, not in series ). (Note: increase the capacity in parallel, the series is to increase the voltage, can only be used in parallel!)

Can be parallel 2-6 18650 battery.

Not available Battery: dry batteries, batteries, 1.2V rechargeable batteries, nickel-metal hydride batteries, 3.2V lithium iron polymer lithium batteries.

18650 Lithium li-ion battery dual micro usb booster board installation should pay attention to the following point

the battery should be in parallel, the voltage between 3.2-4.2V to work, 18650 flat and polymer batteries can be;

the battery is connected to the motherboard B + negative access B-, installed anti-burning motherboard

the old and new batteries, models, inconsistent battery brand can not be mixed.