Created a battery adapter from an empty  cheap film can, a battery clip and two paperclips.

It was very easy to build, but a it tricky to keep the wires inside the can.

First tests were very succesfull, and the cam operates faster than usual.

 

hasselblad_batteryadapter1 hasselblad_batteryadapter2

 

 

After first shoot:

Hm … hm … the battery does not sound very happy witht he A12 film back attached. Maybe I should use a brand battery. With the 12-Filmback it worked a lot better, though.

Have to get a better batttery for sure.