Status LED Indicator Description
Fault Blinking Red Not chargeable; remove and
re-insert radio or battery.
Standby Blinking Amber
• Battery is waiting to rapid
charge.
• Battery may be too hot, too
cold, or low voltage.
• Charger may be too hot.
End of Service Life Alternating red and green Battery remains usable but
may be nearing the end of its
rated service life.
Recalibration Alternating amber and green Battery requires calibration or
battery is due for calibration.
1.3
IMPRES Battery Initialization
For a full IMPRES functionality, a new IMPRES battery must be initialized by the charger.
The charger automatically detects the new IMPRES battery, and automatically starts initialization.
Initialization is the first calibration and reconditioning of an IMPRES battery.
Phases of Battery Initialization
The first phase is a battery discharge, indicated by a steady amber LED. The second phase is a full
charge, indicated by a steady green LED. Refer to IMPRES Battery Charging Indicators on page 9.
NOTE: This process may take up to 12 hours or more to complete, depending on the state of
charge and capacity of the battery. Interruption of either phase delays initialization until the next
charging opportunity.
1.4
Automatic IMPRES Calibration and Recondition
The IMPRES charger automatically assesses the condition of an IMPRES battery.
Based on the condition, the charger automatically calibrates and reconditions the battery. This process
starts with battery discharge, indicated by a steady amber LED status. Calibration and recondition
are complete only after a full charge, indicated by a steady green LED status. See IMPRES Battery
Charging Indicators on page 9.
This process can take up to 12 hours or more to complete, depending on the charging status and
battery capacity. Interruption of either the discharge phase or the full charge phase delays calibration
until the next charging opportunity.
MN007272A01-AB
Chapter 1 : IMPRES 2 Batteries and Chargers
10
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