vampire batteries

I have a set of four rechargeable batteries,
I've had these babies since 2004.
I use them in a couple different things, mainly my camera.

The batteries are slowly holding less and less energy..
dying a slow, painful death.

I can't believe they have lasted five years...
still, I'm not ready to let them go.

I'm on a search to find a vampire to bite a couple of these batteries in the neck,
that'll give them eternal life... I NEED UNDEAD BATTERIES!

Time is running out!!

I need a Vampire, PRONTO!
Help a brother out, bite a neck!