Dual USB 18650 Battery Charger PCB Power Module 5V 1A 2.1A Mobile Power Bank Accessories For Phone LED LCD Module Board.
The circuit board is connected to the battery negative B-, B + is the positive, do not connect reversed, connecting reversed will burn the board, the battery is connected in parallel welding, assembling battery. Note that the insulation between the battery and the circuit board, battery lead not to touch the circuit board, so as not to cause a short circuit.
Motherboard comes with protection function: Charging overcharge protection, over-discharge protection, overcurrent protection. Intelligent output device after charging full, automatically stop charging, to prevent mobile phones overcharge. Output voltage and current stable, will not harm user devices.
4-level LED lamp display power, not working state intelligent automatic shutdown
Dual USB output ports
Input port: MicroUSB (Andro)
Output port: USB
Output parameters: 5V1A / 5V2A
The built-in lithium battery protection IC, over-current, overpressure, under-voltage protection
Compatible Batteries: 18650 batteries, cell phone batteries, flat-panel batteries, MP3 batteries, etc. 3.7v-4.2V polymer Lithium battery
Output port : USB
Input Voltage (V) : 3.7 ~ 5
Output parameters : 5V1A / 5V2A
Length (mm) : 68
Width (mm) : 34.5
Height (mm) : 8.5
Weight (gm) : 12
1 X Dual USB 3.7V TO 5V 2A Power Bank 18650 Battery Charger