OUTPUT LOAD INDICATION: After connecting the load, you can press LED switch long to start the output. Then the screen of the module would show the word 'OUT' and output voltage/current 5V/1A or 5V/2.1A.
FUNCTION: The charging module has Integrate lithium battery circuit, which is able to prevent overcharge, over discharge and overload.
CONNECTION METHOD: You should connect the battery positive pole to B+ and connect the battery negative pole to B-.
CONNECT LITHIUM BATTERY: The power bank module can connect one lithium battery or multiple lithium batteries in parallel. But the following conditions must be met: capacity20W mAh, 3-4.2V voltage.
CHARGING INDICATION: The power bank module is equipped with LCD screen, which can display the word 'IN' when charging.