Apple PowerBook (3400 series) - Manual (Page 89)

6 If you are inserting another battery, remove the battery cap from the new battery to
expose the contacts, then slide it into the battery compartment.
You cannot insert a battery if the battery cap is still on the battery. You can
replace the battery with another LiIon battery or a nickel-metal-hydride
(NiMH) battery. Make sure you only use a battery that is designed for your
Macintosh PowerBook. You should store the battery cap in case you want to
remove and transport the battery later.
IMPORTANT If you take out the main battery while the computer is in sleep
and it is not connected to an external power adapter, you must insert another
battery within 4 minutes or you may lose any unsaved work.
7 If you just inserted a new battery, it’s a good idea to plug in the power adapter in case
the battery is not fully charged. You can look at the indicator lights on the battery to see
the level of charge.
IMPORTANT Lithium ion (LiIon) and nickel-metal-hydride (NiMH) batteries
contain metals which are hazardous when released in the environment. It is
inappropriate, and in some cases unlawful, to throw batteries away with your
household or business trash. Instead of throwing away your spent batteries,
dispose of them as described here.
m
In the United States Return spent batteries to your Apple-authorized service
provider, who will make sure they are included in Apple’s battery recycling
program.
m
Elsewhere Many locations have government or Apple-sponsored collection
or recycling programs for spent batteries. Dispose of spent batteries in
accordance with the mandatory or voluntary battery collection programs
in your location. Contact your Apple-authorized service provider for
information about the recommended disposal procedures in your area.
89 Power Management