NewRoombaInTown has sent in some pictures of a dissected Roomba Battery. Apparantly, it consists of nothing more than 12 Sub-C Cell NiMH batteries, so for all you adventurous types, it might be more economical to rebuild your dead battery rather than buying a new one.
It might also be possible to build a battery that runs longer than an original Roomba battery. Of course, doing this type of upgrade almost certainly voids your warranty, but if we were worried about that sort of thing we wouldn't put it in the Hacking section, now would we?
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