@SS: Probably, see list of Topics. Maybe he/she couldn't find the information / don't understand it. I remember I had trouble figuring out the new format for a while.
@220.127.116.11: Try looking at the dragon's listed habitats. For Battery Dragon, they are Electric + Metal. If they are opposing elements, (meaning it's a) you will have to use Hybrid Dragons (dragons with two elements) to breed them. Since the Battery Dragon is NOT a Rare Hybrid, you can breed it with an Electric Dragon + Metal Dragon. :) You may end up with a Gold Dragon, which is also a result of an Electric Dragon + Metal Dragon (for the same reason that sometimes siblings may look different), but if you keep trying, you will eventually get the Battery.