User Guide

3.5.3 Other Accessories
1. External battery
It is used to power the device for a while after its main supply is cut off. Connect the
external battery to the corresponding interface on the device and place it in a proper
position (such as  in the above figure).
Note
1. Choose proper accessories based on your actual needs.
2. Select a relay that goes perfectly with the battery of your vehicle.
3. lt is recommended to ask a distributor, a designated business, or an expert to do
the installation and commissioning.