[js1138]

Some time ago I read that replacement batteries would cost 30,000 dollars. More recently it was $3000. The faq you linked to dances around replacement cost, so I suspect it's a killer.

[flashbunny]

Recently I read around $3k here on free republic - If I find something concrete I'll post it.

Still, Getting 100,000 to 150,000 out of the battery isnt' that bad - plus by the time you'd need one, the price should be driven down dramatically.