Samsung SPH-I300 - Manual (Page 19)

Section 1
16 Getting to Know Your Sprint PCS Phone
4. Select com1 or com 2, depending on which port the cradle
is connected.
5. When the application is finished installing, restart your
machine.
Installing and Charging the Battery
Battery Capacity
Your phone is equipped with a Lithium Ion (LiIon) battery. It
allows you to recharge your battery before it is fully drained.
The battery provides approximately four hours of continuous
digital talk time (90 minutes in analog) or approximately 100
hours of continuous digital standby time (20 hours in
analog).
When the battery reaches 5% of its capacity, the battery icon
blinks. When there are approximately two minutes of talk time
left, the phone sounds an audible alert every 30 seconds and
then powers down.