Features: 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)
Working 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 Working Battery: dry batteries, batteries, 1.2V rechargeable batteries, nickel-metal hydride batteries, 3.2V lithium iron polymer lithium batteries.
Note: 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.
dual micro usb 3.7v to 5v 2a mobile power bank DIY 18650 lithium battery charger pcb board boost step up module features: 100 percent 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, under voltage protection18650 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