Samsung SGH-R220 - Manual (Page 63)

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Using the Batteries
Your phone is powered by a rechargeable Li-ion
standard battery.
Precautions When Using Batteries
• Never use any charger or battery that is damaged
in any way.
• Use the battery only for its intended purpose.
• If you use the phone near the network’s base
station, it uses less power; talk and standby times
are greatly affected by the signal strength on the
cellular network and the parameters set by the
network operator.
• Battery charging times depend on the remaining
battery charge and the type of battery and charger
used. The battery can be charged and discharged
hundreds of times, but it will gradually wear out.
When the operation time (talk time and standby
time) is noticeably shorter than normal, it is time
to buy a new battery.
• If left unused, a fully charged battery will
discharge itself over time.
PUK
The PUK (Personal Unblocking Key) is required to
change a blocked PIN. The PUK may be supplied with
the SIM card. If not, contact your local service
provider.
If you key in an incorrect PUK ten times in
succession, the SIM card cannot be used anymore.
Contact your service provider for a new card.
You cannot change the PUK. If you lose it, contact
your service provider.
PUK2
The PUK2, supplied with some SIM cards, is required
to change a blocked PIN2.
If you key in an incorrect PUK2 ten times in
succession, you cannot use the functions requiring
the PIN2. Contact your service provider for a new
card.
You cannot change the PUK2. If you lose it, contact
your service provider.
Barring Password
The 4-digit barring password is required when you use
the Call Barring function. You obtain the password
from your service provider when you subscribe to this
function.