Dual USB 5V 1A 2.1A Mobile Power Bank 18650 battery charger pcb power module phone accessories DIY new LED LCD.
Miniature Usb input: 5V 1A
USB output: 5V 2.1a / 5V 1A (Dual USB interface)
Display charging: intelligent digital display
Battery type: Li-ion battery ( 18650)
Code Dimensions: 57 mm dot ˉ x28 mm
Screen size: 27 mm x 17 mm
The board is connected to the negative B- battery , b + is positive, does not connect the reverse, will reverse the connection of the connection burner, the battery of parallel connection welding, battery assembly. "" GE geo ge "189" "always" "always" "always" "always" always "" always "always" "always" always "MYS being"
1 Mobile power 18650 battery charger circuit board