I bought my Dad a pair of gloves like these, although his ones use a D battery. You do have a separate battery pack for each glove (otherwise you'd have gloves attached by a wire, sort of like the way my gloves were attached by string through the back of my coat as a child.

)
You can see on the image of the ad that there's a little pocket (velcros over by the wrist section) which is where the batteries go. The wires are very short and will be in that little pocket too along with a plastic strip for the batteries to attach to. That price looks expensive though. I think
eBay have cheaper ones.
I've just bought myself a battery heated body-warmer as this morning was just torture! That was £16.95 including postage.
Didn't enjoy cycling in thick fog one little bit

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