A few weeks back I got a phone call from Dave at DSM…… Hey Alister do you think a battery that works on an EX1, F3 or PMW-200 just like the original Sony batteries would be popular? Of course it would, was my answer. Up to now almost all the 3rd party batteries that have been available for these cameras have had to use a cable to deliver the power to the camera via the DC in socket. This is because if you try to supply the power from the battery directly the camera knows it’s not an original Sony battery and it will refuse to operate. These new batteries from UK manufacturer DSM have new circuitry that allows the battery to be used directly on the camera with no adapter cable. The capacity is quite a bit higher than the similar sized Sony BPU-60 and at 84Wh, enough juice to run an EX or PMW-200 for around 4 hours.
The batteries are made with high quality Japanese Panasonic cells and assembled in the UK. I’ve been using DSM V-Lock batteries for years and they have always been completely trouble free and long lasting. For more information see the DSM website or contact them at firstname.lastname@example.org