In order to charge your SkyTrak + you must follow these steps. If you do not, your SkyTrak + may discharge while using in USB mode. 

1: Plug SkyTrak + splitter cable into SkyTrak + underneath the dust cover. 

2: Plug the "Power only" USB-C cable into the provided AC power adapter. Wait for Yellow/Amber power light. 

3: Plug "PC' USB-A cable into your PC.  

4: Power on SkyTrak +. Wait for Green/Red/Red than open the SkyTrak application. 

    

5. Once you log in, your SkyTrak + will automatically connect to the SkyTrak unit and will show the following.

(Green/Green/Red) = Checking License Files

(Green/Green/Green) = Connected