Battery Life - HP CodeMaster XL+ M1722A User Manual

Getting acquainted
AC and DC (Battery) Operation
Continuous recording will reduce monitoring time available when you are using the
NOTE
unit on battery power.
When the LOW BATTERY message is displayed on the monitor, plug the unit into
CAUTION
AC power.
From the time the LOW BATTERY message is first displayed to when the battery
capacity is fully depleted (instrument shutdown), there is typically enough reserve
battery capacity to provide either 30 minutes of monitoring, or five 360 joule
charge-shock cycles.
If a battery is defective, there is significantly less monitoring or charge capacity
available after the LOW BATTERY message appears than if the battery is merely
depleted.
A unique audible alarm will sound continuously when there are 60 seconds of
battery capacity remaining. The instrument will automatically shut off after 60
seconds.
If the battery has been fully depleted, plugging the instrument into AC will
immediately restore full operation.
Frequent battery discharges to the low battery level will degrade battery life.

Battery Life

The sealed lead-acid battery used in the CodeMaster XL+ will provide optimum life
when the unit is continually connected to AC power when not in use. The battery
operates best when it is fully charged after each use. To fully charge a depleted
battery requires 18 hours of continuous charge time. Because it is not always
practical to allow a full charge cycle between uses, the CodeMaster XL+ can charge
a depleted battery to 90% of its capacity in approximately two hours. However,
battery capacity and battery life will be reduced if the battery is not allowed to fully
charge after each use. For improved battery life, consider ways to reduce the number
of instrument uses between full charge cycles.
When the instrument is not plugged into AC power, some current is drawn from the
battery to maintain memory and startup logic. Remove the battery if the instrument
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