Handset Battery Replacement; Battery Usage; Best Practices - Cisco IP DECT 6800 Series User Manual

and power save set to 5 seconds.
Handset
Condition
Model
6825
6825
6823
6823

Handset Battery Replacement

The rechargeable battery has a limited number of charging cycle and eventually
require to be replaced and disposed. The battery capacity reduces with usage.
The decrease in the rate of the battery capacity depends on the depth of
discharge, operation temperatures, and charging method. The increase in the
depth of the battery discharge shortens the battery life.
A battery which is used less has lower damage than a battery which is used daily.
The lithium-ion battery has limited charge/discharge cycles and requires to define
the end of battery life. A weak battery indicates the end of battery life. We
recommend you to replace a weak battery immediately.
The following are the signs of a weak battery:
Battery life is shorter than the normal battery life.
•
Battery indicator on the handset shows faster draining rate than
•
normal battery.
Battery charges to 100% faster than normal battery.
•

Battery Usage

You can use Cisco IP DECT Lithium-ion batteries with 6825 handset, 6825
ruggedized handset, and 6823 handset.

Best Practices

Store the batteries always at room temperature. The battery damages
•
when exposed to abnormal temperature. For example, the battery can
damage if you expose the battery on a window with direct sunlight. We
recommend the usage environment between 32°F(0°C) and 113°F(45°C)
• Use only the charging cradle that Cisco provides to charge the battery.
Recharge the battery immediately after the battery is without the charge.
•
Do not leave the battery without any charge for an extended period to avoid
damage to the battery.
Battery life reduces and may be damaged if you place the
•
the charging cradle or connect to a power source for more than 1
month.
Avoid full discharge of the battery frequently. Discharge the battery fully
•
after 25 to 30 partial battery discharge for recalibration.
Narrowband
Calls
21 hours
Good
Average 20 hours
18 hours
Good
Average 17 hours
Wideband
Stand by
Calls
20 hours 12 days
20 hours 11 days
16 hours 10 days
15 hours 10 days
battery on
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