When the HERO9 Black is operating, it may not show a charging signal since the incoming power is being used to power the camera, not to charge the battery. Try starting the recording with the battery in but the external power not connected. Then, once the recording is going, you should be able to connect the external power.
The neatest way to install a dash cam is connecting it directly to the wiring harness of your car. Some dash cams come with the kit needed to do this, while others might require a third-party Add an extra layer of protection with the 2K Rear Camera to guard against tailgaters and rear end impacts. It simply installs to your rear windscreen via the adhesive mount and supplied front to rear cable for all-round protection, offering you a triple view Smart Dash Cam. See all Dash Cameras. $199.99.Record at 1080@30fps. Turn off gps. You’re probably looking at about 2 hours of video on a 64gb card and maybe an hour and 20minutes of battery life. This is what I averaged when going kayaking with it. You can run an external battery with separate battery door and cable sold by GoPro.How much depends on the view angle 120* vs 170*. Some also playback slightly faster than real time. This allows for more storage. Dash cams typically like 32gb memory or up to 64gb. Dash cams also break up the video into 2-5 minute files to allow for their continued recording once the memory gets full.