Muti-controllable Outputs

The module has two high-power outputs (OUT1=5V 5A, OUT2=12V 8A) and two USB outputs

(USB1=5V 2.5A, USB2=5V 2.5A). Among them, OUT1/USB1/USB2 share the 5A current (peak

current 8A), that is, the total output power of these three outputs should NOT exceed 5V*5A=25W

(peak 40W). If only one of the OUT1/USB1/USB2 output is used alone, each output has a 5V 5A

output capability (ie, if USB1 is used alone, it can continuously output 5V 5A; if USB2 is used alone,

it can also output 5V 5A) . When USB1 is powered on, it cannot be turned off and has no output

indicator.

Users can use jumpers or I/O pins to control the ON/OFF of OUT1/OUT2/USB2. Insert the jumper

into ON of the blue header. The corresponding output will be turned on (the green indicator turns

on), and will be turned off when inserted into OFF header. Pull out the jumper and connect any

digital I/O pin and GND to the pins on blue header labeled EN and GND (OUT1 corresponds to EN1,

OUT2 corresponds to EN2, USB2 corresponds to ENU). Set the I/O pin to HIGH to turned on the

output. Set to LOW to turned off. This feature is especially useful in water pumps, solar street lights

or smart agriculture, which dynamically switch lighting or pumps depending on ambient light or soil

moisture.

Attention

GND1 and GND2 are not the same as the system ground GND. When the OUT1 or OUT2 output is turned 

on, the corresponding GND1 or GND2 is connected to the system ground GND, respectively. When OUT1 

or OUT2 output is turned off, GND1 and GND2 are left floating (disconnected from GND). 

The 5V pin on each blue header has only 100mA drive capability. This pin unconditionally output 5V 

regardless of the protection mode (such as over current protection or overdischarge protection). It is not 

recommended to drive device with this pin. 

LED Indicators

There are four types of LED indicators indicating the operation status of different parts of the

module:

Charging LED Indicators

:When the battery is charged with SOLAR IN, the CHG indicator (red)

lights up, and when the battery is fully charged (in the float charging stage), the DONE indicator

(green) lights up and CHG turns off.

Output LED Indicator

: The ON1-ON3 indicator (green) indicates the output status of the

corresponding OUT1/OUT2/USB2, respectively. When the output is turned on, the light is on. When

turned off, the light is off. USB1 has no status indicator and cannot be turned off. As long as there is

input on either BAT IN or SOLAR IN, USB1 outputs 5V.