Today, is different! We teach you how to make an external battery system for the new breed of Canon DSLR cameras.
AND as stated in the video, I did the research - this will work with the Nikon Cameras too. They use a 7.4 volt battery as well. Just substitute the appropriate AC adapter for your camera.
Canon 2ti AC adapter (if you have a different camera, order the right one): http://amzn.com/B003UNRHF0
XT60 Connectors (you need two sets): http://amzn.com/B005I0II1K
Shrink Tubing (multipack here): http://amzn.com/B0014C5ROM
Helping Hands (this is the exact one in the video): http://amzn.com/B000RB38X8
Soldering gun (get a high wattage gun - more heat means less time in contact with components... Less chance of burning or melting things): http://amzn.com/B004QO9M46
Solder (This has the flux built into it, so for instructions on how to use it to tin the tips, etc. look online): http://amzn.com/B0068AF25Y
Battery Pack (This pack is bigger than mine, but also has a higher mAh rating, so will last longer): http://amzn.com/B0006N6XAM
Charger (Not the same one I showed, but this should do the trick... you will, however, have to wire a connector to it.): http://amzn.com/B004W47NIM