The BK-WL601 is a battery mounting plate for all Sony "V-Shoe" mount batteries. The BK-WL601 replaces the NP-1 battery box supplied with the camcorder or dockable deck.
A "No-tools", "No-wiring" approach was taken in the installation design of the BK-WL601. A single thumb screw attaches the plate to the camcorders back. Power and battery information is delivered to the camera via a multi-pin connector.