Thank you for a kind reply.

Would you tell me how to charge a seeker battery pack by using the Wall Power Supply
with 12V/3A XT60 Output? I have a Wall Power Supply and a Power Module v2. Do I need another cable for charging the battery?

@Chad-Sweet
A LTE modem(MDK-M0030-1-02) is installed in the VoXL-Cam that I have for LTE connection in Korea.

May I ask that a VOXL-CAM is delivered to me with LTE antenna installed in it?
I bought a LTE antenna(W3907B0100, Pulse electronics) for just in case. It is being delivered to me. Could you recommend me how to install a LTE antenna to a VOXL-CAM for LTE connection?