Sony SPP-ID910 - Manual (Page 12)

step 3: Preparing the battery pack for the handset (continued)
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Battery duration
A fully charged battery pack lasts for about:
• Approximately 7 hours when you use the handset continuously.
• Approximately 7 days when the handset is not in use (less during
out-of-range).
When the battery pack needs charging:
• The phone will beep when it is activated.
• The display will change to “LOW BATTERY”.
LOW BATTERY
Notes
• The battery pack will gradually discharge over a long period of time, even if
not in use.
• The Caller ID list, speed dial numbers and the security code will be retained
even during loss of battery or AC power.
Battery for the base unit
A spare battery can be purchased and installed in the base unit. This
battery serves as a ready standby for fhe handset and, if needed, will
provide operational backup for the base unit in the case of a power
failure. Calls will still be able to be placed and received without
• A battery pack can be charged in the base unit, but not as quickly as when
installed in the handset. A full charge of the second battery will require about
24 hours when charged in the base.
When to purchase a new battery pack
If the battery lasts only a few minutes even after 8 hours of charging,
the usable life of the battery has expired and needs replacement.
Contact your local Sony authorized dealer or service center, and ask
for Sony BP-T23 rechargeable battery pack.
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