RIDGID R843 Operator's Manual page 12

OPERATION
LED FUNCTION OF CHARGER
See Figure 5.
LED
INDICATOR
Power
Evaluate
Evaluate
Evaluate
Evaluate
Charging
Full
POWER
INDICATOR
EVALUATE
INDICATOR
BATTERY
PACK
Without battery pack ON
Hot battery pack Flashing
Cold battery pack Flashing
Deeply discharged Flashing
Thermistor shorted Flashing
or open
Fast charging ON
Slow charging OFF
12
RED
GREEN
LED
LED
OFF Ready to charge battery pack
OFF When battery pack reaches cooled
temperature, charger begins fast
charge mode
OFF When battery pack reaches
warmed temperature, charger
begins fast charge mode
OFF Charger pre-charges battery until
normal voltage is reached, then
begins fast charge mode
OFF If red LED continues flashing for
more than 90 minutes, and green
LED remains off, this may
indicate a damaged battery
Flashing Fast charges in 30 minutes
ON Fast charging is complete.
Charger maintains charge mode.
ACTION
Fig. 5