USB Lithium Li-ion Lipo Battery Charger Module 3.7v 4.2v Boost Step Up 5V 9V 12V

Input voltage: 4V-8V

Output voltage: 4.3V-27V (Continuously adjustable)

Charging voltage: DC 4.2V

Charging current: Max. 1A

Discharging current: Max. 2A

For example: VIN+Port input 5V Solar panels, BAT+port can output 4.2V to charger 3.7V 18650 Lithium battery.

Feature:

Micro usb DC-DC Step up Boost module charging board.

The OUT+Port can output adjustable voltage.

Fine workmanship and good performance.

Long service life.