
104 Mesa Rugged Notepad Owner’s Manual
LED Indicators
Each baery compartment has a green and red LED. The LED
states indicate the following:
LED State Indicates
Red LED On Baery pack charging
Green LED On Baery pack fully charged
Red Flashing LED Baery pack or charging fault
Battery Pack or Charging Faults and Remedies
Possible causes for a ashing red LED:
Over-discharged baery: The baery pack is severely
depleted. The red LED ashes a few seconds aer the baery
is inserted. If the red LED continues to ash for a couple
of minutes, remove the baery pack. It might be faulty,
requiring replacement.
Pre-charge time out: A low baery pack is inserted and
the voltage does not reach an acceptable charge level. The
red LED ashes 30 minutes into the charge. The baery
pack might be at the end of its life or faulty, requiring
replacement. Note: Do not confuse this with the out-of-
temperature fault (next case).
Out-of-temperature range for safe charging: The charger
senses the baery pack is too cold (< 0˚ C, 32˚ F) or too hot
(> 40˚ C, 104˚ F) for safe charging. This can occur at any
time in the charge cycle. The red LED continues to ash,
even aer the baery pack is removed. Reset the charger by
inserting a baery pack with an acceptable temperature or
remove and reapply the external power to the charger. Bring
the temperature of the baery pack into the safe charging
range. If the problem persists, the baery pack might be
faulty, requiring replacement.
Charge cycle time out: The baery pack does not reach full
charge within eight hours. The baery pack might be at the
end of its life or faulty, requiring replacement.
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