Features:
1. Supports 5-18V solar panel input, compatible with 10-30W solar panels
2. MPPT algorithm for higher charging efficiency and intelligence
3. Onboard USB 5V/2.1A output, input anti reverse connection and anti backflow
4. Three input interfaces are available for easy use
5. Compact and portable, high brightness LED indicator light, easy to use

Parameters:
Input interface: DC5.5 * 2.1, Type-C, wiring terminal (note: only one of the three input ports can be connected at the same time, Type C is input and cannot output)
Solar panel input: 5V-18V
USB output: 5V/2.1A
Support 10-30W solar panels
Supports 3.7V ternary lithium 18650
Input anti reverse connection and anti backflow
Product size: 70mm * 34mm
Instructions for use:
Supports 5V-18V solar panel input
Before use, place the solar panel voltage jumper in the corresponding position
The battery end can only charge 3.7V lithium batteries
When connecting the battery, be careful not to connect the positive and negative poles in reverse
Whether or not there is a battery protection board, it can be used
After pressing the button, the battery level indicator light displays the current battery level
USB output with discharge protection, turn off USB when battery runs out
The output will not automatically turn on after being charged, and the button needs to be pressed

Note:
USB output cannot be used without a battery. The battery end must be connected to the battery USB for stable output.
It cannot work without a short-circuit cap, but it can be charged using USB when plugged into 6V.
Long term use requires attention to heat dissipation.

Package include:
1X module