After using my SJ7 as a dash camera for about five hours, I tried to power it down. No luck - it was "pull the battery" crashed. I opened the case, tilted the camera onto the back, and picked it up with my thumb and forefinger. Three hours later my thumb and finger tip are still red and sensitive. These are the symptoms of first degree burns. The camera is now retired from service at the start of a month-long road trip. I am not amused.