iBook: Description of Charging Contacts on Underside

On the bottom of the iBook above the battery cover are alternative battery charging contacts, shown in the image below. These contacts provide an alternate method for charging the iBook's battery in addition to the AC Adapter. An example would be a rack system where multiple iBook computers could be charged simultaneously, each in their own charging bay.

Apple does not sell a battery recharging station that takes advantage of these battery charging contacts, but a third party company may release one.