My shopping List:
- external battery holder for four mono or baby cells
- 14AWG cable red and black
- male and female connectors
- wooden dowels 14x50mm
1. Prepare the dowels
The wooden dowels will be our fake mignon batteries as they have almost the size of a AA-battery. As we need to get out the cable, we have to cut them to 45mm length. Afterwards you drill a hole through the dowel.
2. Solder the cables
Cut the cables to the right length. Pull the cable through the dowel (our fake AA battery) and make a big solder iron blob at the end. This will be the connection to the original contact in the battery compartment of the flash. Solder the connector to the cables.
I used some hot glue to mount the cables inside the dowels.
3. Battery holder
Now finish the oppsite side: take care to solder plus to plus and minus to minus. I also added some hot glue around the connections to be sure.
4. Modify your flash
To get the cables out of the flash, I opened the battery compartment with a drill..
Ready for testing? Use an old flash first to avoid bad surprises! If you start building your own, be careful not to connect plus and minus anywhere. I'll not be responsible for your fault ;-)