Using the Optional Buck/Boost Transformer ($225), This Charger can Charge 72-156 Volt Systems
Add Triple Stage Charging for $95 and Get Digital Shut-Off included.
Base Features:
- Type: AC to DC Current & Voltage Regulated
- Voltage Input: 110 - 130 VAC, 60 Hz.
- Amperage, Input: 15 Max. RMS Amps (Adjustable)
- Amperage, Output: 12.5 Max. Amps (Adjustable)
- Capacity, Input: 1800 Max. Watts
- On/Off Circuit Breaker/GFCI With Trip Indicator
- Enclosure: Safety Red, 16 Gauge Steel
- Mounting Holes: 4 #10
- Size: 7-1/4"D x 6-3/8"H x 8-1/8"L
- Weight (With Cables): 13 Pounds
Q: What is the Analog Shut Off?
A: The Analog Shut Off (ASO) is optional on the Two Stage SC18
model. When the battery current reduces to about 70% near end of charge,
the non-latching Analog Shut Off timer is started. Approximately 30 to 60
minutes later the charger is completely shut off.
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Q: What is the Digital Shut Off?
A: The Digital Shut Off (DSO) is optional on the Two Stage SC18
model. The Digital Shut Off is standard on all Three Stage (3S)
models and the SC30 model. When the battery current decreases to 71.5%
(27% on Three Stage models) the latching Digital Shut Off timer is started,
as indicated by the ultra-bright LED Power On lamp changing from a steady to
a flashing state. After the user set time of ½, 1¼, 2½,
or 5 hours has expired, the charger will completely shut
off.
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Q: What is the Two Stage charger?
A: The first stage of charging is Constant Current or bulk
charge of the batteries. This provides a maximum constant current to charge
the batteries as quickly as possible, within the charger rating. The second
stage is Constant Voltage or the finishing charge. As the battery
voltage rises during charge, the Constant Voltage stage will maintain the
battery voltage at the preset level, and the battery current will continue
to decrease. Two Stage chargers have two adjustment controls: Current and
Voltage.
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Q: What is the Three Stage charger?
A: The three stage charger adds a third stage, which is a
Constant Current equalization charge performed directly after the Constant
Voltage second stage. The Three Stage charger includes the Digital Shut Off
(DSO), which performs the third stage equalization for the user set time of
½, 1¼, 2½, or 5 hours, then complete shut off. Three Stage
chargers have three adjustment controls: Current, Voltage, and Shut Off.
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Q: Can a Two Stage charger provide a finishing equalization
charge?
A: Yes. After the charger is finished with the constant
voltage second stage, the Voltage Control may be manually turned up all
the way and the Current Control may be adjusted for the desired equalization
current. The charger will provide a constant current allowing the battery
voltage to rise above the Constant Voltage second stage.
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Q: Can a Three Stage charger be used without the Third Stage
equalization charge?
A: Yes. The Shut Off Control may manually be turned all the
way down. The charger will now operate as a Two Stage charger.
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Q: What is the Current Control for?
A: The Current Control adjusts the maximum first stage current.
The Current Control is usually set all the way up unless using an AC service
of lesser rating than the charger used. In this case, the Current Control
may be turned down to reduce the maximum current drawn from the AC service.
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Q: What is the Voltage Control for?
A: The Voltage Control adjusts the second stage desired battery
finishing voltage. The Voltage Control can be set for 72-156 nominal pack
voltage.
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Q: What is the Shut Off Control for?
A: The Shut Off Control is used on Three Stage (3S) chargers
only and adjusts the third stage constant equalization current.
