Understanding the Status LED
LED State
Red
Green
Yellow
Alternating
red and yellow
Off
4
Description
The battery is charging.
The battery is fully charged.
The battery is out of charging temperature
range. To ensure proper battery charging, the
operating range for the AC20 is 5
°
°
(41
F to 95
F). Make sure that the AC20 is
within operating temperature range.
The battery is not charging. Try these solutions:
• Make sure the battery is firmly installed in
the charger.
• Make sure the charging pins on the AC20
and the contacts on the battery are clean.
If these solutions do not work, the battery may
be defective.
• No battery is installed.
• The charger is not receiving power. Make
sure the power plug is firmly inserted in the
charger and the power supply is properly
connected to a powered AC outlet.
°
°
C to 35
C