Sony BC-1WD Service Manual page 8

Charging
Applicable battery packs and charging time
The time needed to charge one fully discharged battery
pack is as follows.
Battery pack charging time
Applicable Battery NP-1 NP-1A NP-1B
Pack
Charging Time About About About
(at 25°C) 60 min. 70 min. 90 min.
Note on the battery packs
The performance of the BC-1WD/1WDCE is
guaranteed only for the applicable battery packs. Do
not charge any other types of battery packs.
Continuous charging of more than 4 battery
packs
The charge lamp of the corresponding battery pack
insertion section will light in green after a battery pack
has been fully charged. If you wish to charge
additional battery packs, remove the fully charged
battery pack and replace it with one to be charged. A
large number of battery packs can be continuously
charged through successive charging of the battery
packs.
Charging without refresh operations
Press the REFRESH OFF button and it will light.
When this button is lit, charging begins, only without
discharging first. The REFRESH OFF button goes out
and returns to the automatic refresh mode after all
battery packs inserted in battery pack insertion sections
1 through 4 have been charged once.
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Battery pack life judgement
The capacity of the battery pack in section 4 is
measured and the results are displayed. The capacity
of battery packs in sections 1 through 3 cannot be
measured.
Press the LIFE button and it will light. Then, the
capacity of the battery pack inserted in battery pack
insertion section 4 is measured in the sequence shown
in the figure below. The criterion is that the measured
value reach 2/3 of the capacity (indicated in Ah units)
shown on the battery pack. Charging occurs in the
normal order when battery packs are also inserted in
sections 1 through 3, with the capacity of the battery
pack in section 4 measured last.
Discharge
Charge
Life judgement discharge
(Ah indication that conforms to a 0.2 c rate
discharge)
Recharge
Trickle charge
Life judgement of battery pack
NOTE
The measured value may sometimes be greater than
the capacity shown on the battery pack, however this
does not mean that there is trouble with the battery
charger.
Specifications
Power requirement BC-1WD: 120 V AC, 60 Hz
BC-1WDCE: 220 to 240 V
AC, 50/60 Hz
Output 14.5 V DC, 2.0 A
Power consumption 51 W
Operating temperature 0°C to 40°C (32°F to 104°F)
Storage temperature –20°C to +60°C
(–4°F to +140°F)
Humidity 5 to 90% RH
107.5 × 88 × 325 mm (w/h/d)
Dimensions
× 3 × 12
(4 1 / 1 / 7 / inches)
4 2 8
(excluding projections)
Weight Approx. 1.7 kg
(About 3 lb 10 oz)
Charge system Constant current charge system
Charge control system – booster charge control
system
(Detects the voltage drop
(– V) of a battery which
occurs near the end of
charging)
Applicable battery packs and charging time
Battery Pack NP-1 NP-1A NP-1B
Charging time for About About About
one pack after fully 60 min. 70 min. 90 min.
discharging
Charging time for four About About About
packs in the auto 280 min. 330 min. 420 min.
(60 × 4 + 40) (70 × 4 + 50) (90 × 4 + 60)
a)
refresh charge mode
a) Times are reduced about 40 to 60 minutes (discharging
time of the first battery pack) when auto refresh
discharging is not done.
Booster charge current About 2.0 A
Discharge current About 2.0 A
Extinction voltage About 10.5 V
Tolerance of capacity indicator
About 5%
Supplied accessories AC power cord (1)
Operating Instructions (1)
Design and specifications are subject to change
without notice.
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