I've decided that i need a battery pack for my Sigma 530 DG Super. The rechargeable batteries are great and all, but I want to punch it up just a bit more.
In order to do this I searched the web and found a few good articles. The real key is to determine which leads in the flash are taking the power in. I've determined the the positive and negative terminals for the flash are found on the battery spots closest to the back of the flash when shoe mounted to your camera. This tells us where the power from the pack needs to go.
My idea is to use a 6v 1.2-4 amp battery. The battery will connect to a coiled cord using a quick connect/disconnect molux style connector. The coiled cord will have a diode (5 amp???) inline with it. A diode prevents the backwards flow of electricity, for those un-aware. This prevents me from hooking up and having the electricity flow back into the battery incorrectly. The coiled cord will have a quick connect at the top that connects to a flat cable that passes through the battery door to the "dummy batteries". Two of the dummy batteries have nothing in them, and are only used as space holders. The negative terminal battery ( on bottom in back) is a straight pass through wire. The positive (on top in back) will have a 5-15 amp fuse in it in order to prevent any other damages. My plan is to heat shrink and finish it off, as well as find a nice case for the battery to hook to my belt.
If anyone has any input or suggestions on component ratings, it would be more then welcome. Of course plans parts and images along the way will be posted once final design has been accomplished.
Attached is a quick diagram I drew: