Ipod Battery Sources?

I have an older Gen 3 Ipod which just won't die and needs a new battery. I can get it in the states but a hassle to ship twice.

Any sources for decently priced replacement batteries?

I am in CM. If you have a source in bkk then would appreciate a website or phone #.

Thanks for any help.

btw searched pantip bkk website but did not see any battery vendors for Ipods.