Drawing power from your car battery DIRECTLY with our hardwire kit is the best choice, as the camera switches between regular mode and parking mode automatically, and no concerns about battery drainages.
If you must use an external battery as a power supply, you may read on.
1. Spliced output cable
Firstly, you still need to buy our hardwire kit.
Secondly, please make sure the battery pack comes with spliced output cable to connect to our hardwire kit.
Please check the spliced cable carefully and confirm which is for B+ and which is for ACC OUT.
For VIOFO hardwire kit, red cable is B+, and yellow cable is ACC OUT.
For VIOFO battery pack, the red spliced cable is for battery and the yellow spliced cable is ACC out. You just need to connect the hardwire red cable to red spliced cable, and hardwire yellow cable to yellow spliced cable, and black cable to black cable.
Please refer to the picture below:
Notice: For other brand battery pack, the red spliced cable may be ACC OUT and the yellow spliced cable may be B+ and. So you need to connect our hardwire red cable to the yellow spliced cable, and hardwire yellow cable to the red spliced cable, as per the pic below.
2. Recommendation
Here is VIOFO battery pack:
https://www.viofo.com/collections/battery-pack
Video for your reference: Stay tuned！
Here is a third party battery pack we recommend.
Cellink NEO Battery — BlackboxMyCar
Here is an introduction video, FYI.
https://www.youtube.com/watch?v=3EOitU9giVQ
3. Test parking mode temporarily?
In case you want/need to test parking mode at home or in your car, you can use our original car charge cable or the short data cable and wait for 5 minutes quietly as per the below video.
https://www.youtube.com/watch?v=aujg55-mXcs
Note: It is not a routine operation to use the car charger cable for parking mode, as the camera may switch back to normal mode unexpectedly, which is not as reliable and convenient as using hardwire kit.