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5. SPECIFICATIONS
5-1. Specifications
Maker
Models
Item
Power supply
Input capacity
Voltage drop method
Rectifying method
Overcharging protection
system
Charging indication
method
Charging voltage
Charging current
Charging time
at 20°C (68°F)
Product weight
Operating temperature
Unplug the battery from the charger upon reaching the approximate charging time above. The
Battery Set lamp goes off when the battery is unplugged from the charger. Note that in case of low
battery temperature (below 0°C) or low supply voltage, the battery may not be fully charged.
Should you feel that the charger potential has been lowered, charge the battery longer than the
charging time above.
5-2. Comparison with Similar Product
Maker
Models
Item
Charging time
Charging voltage
Charging current
Applicable ambient
temperature range
Charging completion
system
Outer dimensions
Product weight
UC 9SF
12 W
A thermostat and thermistor monitor the storage battery surface
temperature.
When a specified temperature is detected, indicating that charging is
completed, an electronic control circuit turns off the power to prevent
overcharging.
9.6 V
Approx. 180 minutes (at 1.2 Ah), at below 0°C: Approx. 240 to 360 min.
Approx. 210 minutes (at 1.4 Ah), at below 0°C: Approx. 280 to 420 min.
Approx. 300 minutes (at 2.0 Ah), at below 0°C: Approx. 400 to 600 min.
Approx. 360 minutes (at 2.4 Ah), at below 0°C: Approx. 470 to 720 min.
UC 9SF
Approx. 180 (at 1.2 Ah), at Under 0°C: Approx. 240 to 360 min
Approx. 210 (at 1.4 Ah), at Under 0°C: Approx. 280 to 420 min
min.
Approx. 300 (at 2.0 Ah), at Under 0°C: Approx. 400 to 600 min
Approx. 360 (at 2.4 Ah), at Under 0°C: Approx. 470 to 720 min
9.6
V
A
°
C
°
(
F)
Thermostat and Thermistor
mm
(in)
(2-61/64 x 3-9/64 x 2-23/32)
kg
(Ibs.)
UC 12SF
Frequency: 50 Hz, 60 Hz
Voltage: 230 V
15W
Isolating transformer with center tap
Full wave rectification
Battery set lamp indication:
With battery mounted: On
With battery removed: Off
12 V
0.7 A
0.13 kg (0.29 lbs.)
0°C to 40°C (32°F to 104°F)
HITACHI
UC 12SF
UC 14SF
12
14.4
0.7
0 to 40
(32 to 104)
Thermistor
75 x 80 x 69
0.13
(0.29)
-2-
UC 14SF
UC 18SF
18 W
23 W
14.4 V
18 V
UC 18SF
UC 12SD
Approx. 60
(at 1.2 to 1.4 Ah)
18
10 to 40
(50 to 104)
Thermostat
181 x 87 x 80
(7-1/8 x 3-7/16
x 3-5/32)
12
1.55
1.5
(3.3)
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