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Rev. 2004.04.26
AL-4 Page 2
MULTI PRPOSE OPERATION
AL-4 is a Multi purpose simultaneous quick Charger that will charge a completely discharged IDX
NP-L NP type Lithium Ion Battery in approx. 2 and ½ hours. It can also charge NP type Ni-Cd or
NiMH batteries in approx. 90 minutes and BP type NiCd batteries in approx. 2 and ½ hours and BP
type NiMH batteries in approx. 4 hours. The AL-4 can charge 4 batteries regardless of chemistry
simultaneously.
The charger automatically searches each channel for a battery to charge, in a continuous loop. The
charging simultaneous loop is interrupted only by the detection of a valid battery to be charged. The
AL-4 Charger automatically checks a battery’s chemistry & type charges it accordingly.
OPERATING INSTRUCTIONS
A. Connect AC power cord firmly.
B. Set the power switch ON (Green LED will light).
C. Basic Operation:-
For NP-L Lithium Ion Battery’s
1) Insert a battery - Standby mode, AL-4 Charge channel LED is orange, while the
charger is checking the battery ‘s Chemistry/
2) Battery Check - Within 5 seconds the LED will turn to Red indicating that the
AL-4 Charger is in fast charge mode. If a battery is low voltage
the AL-4 Charger will be in slow charge mode, until the battery
reaches fast charge capability, LED will remain Orange. If a
battery can not pick up the Fast charge or if a battery becomes
excessive over charge then the Orange LED will start flashing
indicating Battery Fault.
3) Fast Charging - When a battery is at 12v LED will turn to Red indicating that the
AL-4 Charger is in fast charge mode.
4) Charge End - When the battery is fully charged the LED will turn to Green,
indicating that the battery is ready to use.
For Nickel Cadmium or Nickel Metal Hydride Batteries:-
1) Insert a battery - Standby mode, AL-4 Charger LED is orange, while the charger is
checking the battery’s Chemistry.
2) Battery Check - Within 5 seconds the LED will turn Red for start charging
indication. If a battery is low voltage then the AL-4 Charger will
be in slow charge mode, LED will remain Orange until it charges
up to fast charge capacity. If a battery can not pick up the Fast
charge or if a battery becomes excessive over charge then the
Orange LED will start flashing indicating Battery Fault.
3) Fast Charging - When a battery is at 11v LED will turn to Red indicating that the
AL-4 Charger is in fast charge mode.
4) Charge End - When the battery is fully charged the AL-4 will turn to trickle
charge for NiCd and NiMH batteries and the LED will turn to
Green, indicating that the battery is ready to use.
LED COLOUR STATUS LIST
Solid Red .......................... Quick Charge in progress
Solid Green ...................... Charge complete, battery ready
Solid Orange .................... Standby mode or slow charge mode
Flashing Orange .............. Defective battery