Test Equipment Depot 990DSL User Manual page 32

990DSL
Users Guide
During operation from either external power source, the battery receives a
"trickle" charge that allows you to operate the tester for extended periods of
time without discharging the internal battery pack. When the CopperPro is
connected to an external power source but turned off, the battery automatically
undergoes a fast-charging cycle.
A full charging cycle can take between two to three hours to complete. The
charging status LED on the side connector panel indicates the state of the
battery charge as one of the following:
•
Flashing red: indicates that the battery is being prepared for fast charging,
and is in the "pre-charge" mode. This state lasts for several minutes before
the battery enters fast charging mode. This state will be extended for
extremely low voltage, low temperature, or high temperature battery
conditions, with the fast charge mode beginning when the battery has
reached the proper voltage and temperature range.
•
Steady red: indicates that the battery is in fast-charging mode. In this
mode, it can take up to three hours for a completely discharged battery
pack to charge.
•
Steady green: indicates that the battery is in the final stages of charging.
The first stage, which typically lasts for about 30 minutes, occurs after the
fast-charging mode is the "top off" state. The final stage is the "trickle
charge" state. In this state, the battery is fully charged. The CopperPro can
be left in the trickle charge state for an indefinite period of time, without
harm.
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