My commutes are usually just under 2 hours, but I always bring extra batteries incase of anything. I used to do cinematography/photography and learned how important it is to carry extras incase some die or forget to charge from past experience 😅 For the rear I use a GoPro 7 with this mount. Works great, it seriously comes in handy. I posted a video on another group that shows how my front and back cameras look if you’d like to check it out as an example