Even though we ARE Nikon lovers,we are NOT affiliated with Nikon Corp. in any way.
Already have an account? Login
"RE: MB D100 Double Battery"
since the camera will work with only one battery, I'm guessing that if you run out of power, both batteries are dead. But you could always put one in at a time and see if there is any life left in either battery. after that - time to recharge.