If you have a Flip Mino that will not turn on, its probably not broken. It may not even need a new battery. There is a reset switch in the mounting slot on the bottom, a small paperclip will fit inside. Try pushing it a couple times and then connect it to a USB port to charge. You may need to push the reset button 4 or 5 times. If it does turn on but shows a black screen with a bunch of diagnostic information push the reset button again to change to normal boot.