MB-D200 and Battery cover

Hi everyone
I just bought a 2nd hand MB-D200 battery grip and a D200 body, it doesn't come with any instructions.
Does anyone know how to take out the battery cover from the body?
Leon
I just bought a 2nd hand MB-D200 battery grip and a D200 body, it doesn't come with any instructions.
Does anyone know how to take out the battery cover from the body?
Leon