Agilent Technologies auroraSonata, User Manual

Page: 264 / 336

aurora
Sonata
Hand Held ISDN Tester—User Guide
8-4 427869
Note
Use this figure as an
approximate
indication of battery
condition. Immediately after charging, it is around 100%.
When the charge is adequate, it is around 60% (this varies
according to surrounding temperature). This value is displayed
during most of the charging cycle.
When battery power is low
When battery power has dropped to approximately 16% of its
fully charged voltage, the
Bat LED flashes red. You must now
either recharge or replace the battery pack.
Note
If battery power falls to a level which is insufficient to power
the tester reliably, aurora
Sonata
switches itself off. The system
settings are stored in the memory.
Saving the batteries
aurora Sonata can be set to switch itself off automatically when
powered from batteries, if no calls are in progress and no keys
have been pressed after a certain length of time.
You can choose the length of time that aurora
Sonata
will wait
before switching itself off, or disable the battery-saving feature
for continuous operation. For details, see
Setting the
automatic power-off time delay in Chapter 3 section 1.
Discharging the battery pack
NiMH cells exhibit a ‘memory’, which means that if you
repeatedly recharge a battery which is only partially
discharged, a small amount of its capacity is lost.
This should not normally be a problem, but you may wish to
discharge the battery completely before recharging it. You can
do this by operating aurora
Sonata
from battery power with the
battery-saving feature disabled (see above), or by leaving the
unit in unattended mode (see Chapter 6 section 2).