Galaxy Note 4 camera flash caused reset and drained battery

[AC Question]

My Note 4 was at 50% or more, had to take pics of some paper notes, kinda dark so I put flash on auto, after my 7th or 8th pic, my phone screen went black, then the Samsung logo came up, my phone restarted! I went back to taking pics, after the 3rd pic it restarted again, but after restarting my phone battery was now at 0% and it shut off. I plugged it in, waited for it to reach `15% and finished taking pics with th flash off in a well lit room. Note 4 latest Droid OS, basic camera app, no other problems and plenty of free memory, 15gig or so.