The trick of the game is NOT to use up too much power before 6AM hits. If you use up the power too early, Freddy will kill you. Newer players may frantically and profusely check the cameras, use the hall lights, and close the doors, wasting a lot of power. You must use your tools as sparingly as you can.
all credit goes to keplar22at. i just did this to make it easier for me to find Pro tip: keep camera on 1c