
Charging the Battery
Note
Sometimes a new battery needs several
charge/discharge cycles before it performs to full
capacity.
Before you use a new battery for the first time, charge it fully.
Connect the charger to line power and place the battery in the
charger as shown in Figure 2. You can leave the battery pack on
trickle-charge indefinitely without damage. The charger will not
overcharge a battery, even if you reinsert a charged battery.
•Nickel-Cadmium Battery
To obtain a full charge, charge the battery until the indicator
blinks (approximately 1-1/2 hours).
•Nickel-Metal Hydride Battery
To obtain a full charge, charge the battery until the indicator
blinks (approximately 2-1/2 hours), then leave it in the charger 3
more hours for a full charge.
Note
When you remove a charged battery from the charger,
wait for the blinking indicator to go off before you insert
a discharged battery. It takes about 2 seconds for the
battery charger to reset.
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Figure 2. Inserting the Battery
When to Charge
Wait until the battery is fully discharged before you charge the
battery. The battery will retain its charge longer.
Charge Mode Indicator
The red indicator light on the side of the charger shows the status
of the battery charge cycle as follows:
•Off
The battery is not inserted, or it is inserted incorrectly, power is
disconnected or not available, or the internal fuse is blown.
•Steady on
High-current fast charge mode.
•Blinking (50% duty cycle)
Nickel-Cadmium battery: trickle-charge mode.
Nickel-Metal Hydride battery: pulsed charge for the first 3 hours
after blinking starts, then trickle-charge mode.
•Blinking (less than 50% duty cycle)
Pre-charge delay for proper battery temperature or voltage
conditions.
Internal Fuse
An internal fuse is soldered in place. If the charger indicator does
not go on when a battery is installed, this fuse may be blown. The
fuse cannot be replaced by the user.
Specifications
BC7217-120, BC-7217-INTL:
Wall Adapter: Input Voltage: 90 to 264 V ac
Input Voltage Frequency: 47 to 63 Hz
Output Voltage: 15 V dc, 2 A
Line power adapters: North America/Japan,
Europe, UK, Australia
Safety Approvals: UL, CSA and TUV
Both Models:
Charger Input Voltage: 14 to 20 V dc
DC Power Plug Polarity:
– Ring Negative
+ Center Positive
Temperature: Operating: 0 to 40 °C
Storage: -20 to 70 °C
Humidity (noncondensing):
Operating: 0 to 90% R.H.
Storage: 5 to 95% R.H.