Sony DSLR-A850 - Manual (Page 18)

18
To remove the battery pack
Inserting the charged battery pack
1
While sliding the battery cover
open lever, open the battery
cover.
2
Firmly insert the battery pack all
the way while pressing the lock
lever with the tip of the battery.
Lock lever
3
Close the battery cover.
Turn off the camera and slide the lock
lever in the direction of the arrow. Be
careful not to drop the battery pack.
Lock lever