thats a good point mark. That is the reason that I have never had a second battery. However, I think that there is a niche market still out there for it. I am not talking about powerbook g3 cradles though. I am talking about more recent computer's batteries; cradles for them.
"Fix it 'til it Breaks."

Jacob - EiC & Director of Technology
Mac Pro Quad 2.66 - 4GB RAM
160 GB SATA RAID 1 - 650 GB Storage
Quad 19" Widescreen LCDs
Accessorized to the Hilt