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INTRODUCTION
Thank you for selecting the
25Amp Battery Charger. With proper care and use, it will give you years of dependable service. This
b a t t e ry charger has a high charge rate of up to 25amps.
This battery charger features 3-stage, high-efficiency charging technology, built-in microprocessor control that ensures fast,
safe and complete charging of serviceable batteries.
FEATURES
• Unit automatically selects the proper charge rate setting
• 3-stage high-frequency switch mode automatic rapid charging
• 75 amp engine start
• Automatic Temperature Compensation
• Digital diagnostics
• Alternator check
• Digital display shows operating mode, fault conditions and battery voltage
• Charging Gauge shows the status of the battery being charged
• Spark resistant reverse polarity and short circuit protection for user with reverse polarity indication
• Cables wrap around the side ears and clamps clip to the back of unit for convenient storage
• Microprocessor control (Digital Smart Control)/high frequency power
• Compensates for low AC from extension cord use
• Lightweight, high-efficiency design
Controls and Functions
FUNCTION CONTROL KNOB
The Function Control Knob is used to select either the Smart Charge, Alternator Check or Engine Start function. This selection
must be made B E F O R E connecting the battery charger clamps to the battery.
Smart Charge analyzes the battery and starts the recharging process.
Alternator Check checks to determine that the alternator is keeping up with the electrical load.
Engine Start places the charger in an engine start sequence.
SCROLLING MESSAGE LCD DISPLAY
T h e Scrolling Message LCD Display (LCD) indicates the various status messages and/or conditions as described in the Smart
Charge Function and Alternator Check sections that follow.
CHARGING GAUGE
The Charging Gauge displays the percentage of charge during the Smart Charge process.
SETTING UP THE UNIT
Ensure that all installation and operating instructions and safety precautions are understood and carefully followed by anyone
installing or using the charger. Follow the steps outlined in the “Important Safety Instructions” section of this manual.
After turning the Function Control Knob to the desired function position, plug the charger into a functioning 120 volt AC outlet.
Next, connect charger clamps correctly to the battery.
BLACK (NEGATIVE, –) CLAMP
SCROLLING MESSAGE
LCD DISPLAY
RED (POSITIVE, +) CLAMP
FUNCTION CONTROL KNOB
CHARGING GAUGE
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Charger Location
1. Locate charger as far away from battery as cables permit.
2. NEVER place charger directly above battery being charged; gases from battery will corrode and damage charger.
3. NEVER allow battery acid to drip on charger when reading gravity or filling battery.
4. NEVER operate charger in a closed-in area or restrict ventilation in any way.
5. Marine batteries must be removed and charged on shore.
6. Do not set a battery on top of charger.
Charger Clamp Connection Precautions
1. Connect and disconnect clamps only after removing AC cord from electric outlet.
2. Never allow clamps to touch each other.
3. Attach clamps to battery and chassis as indicated in “Battery Installed in Vehicle” steps 5 and 6, and in “Battery Outside of
Vehicle” steps 2, 4 and 5.
C A U T I O N : A spark near the battery may cause an explosion. Follow these steps to reduce the risk of a spark near the
b a t t e ry when the battery
is installed in a vehicle:
1. Position AC and clamp cords away from hood, door, or moving engine parts.
2. Stay clear of fan blades, belts, pulleys, and other parts that can cause injury to persons.
3. Check polarity of battery posts. POSITIVE (POS, P, +) battery post usually has larger diameter than NEGATIVE (NEG, N, –)
p o s t .
4. Determine which post of battery is grounded (connected) to the chassis. If N E G AT I V E post is grounded to chassis (as in
most vehicles), see 5. If P O S I T I V E post is grounded to the chassis, see 6.
5. For negative-grounded vehicle, connect POSITIVE (RED) clamp from battery charger to POSITIVE (POS, P, +) ungrounded
post of battery. Connect NEGATIVE (BLACK) clamp to vehicle chassis or engine block away from battery. Do not connect clip
to carburetor, fuel lines, or sheet-metal body parts. Connect to heavy gauge metal part of the frame or engine block.
6. For positive-grounded vehicle, connect NEGATIVE (BLACK) clamp from battery charger to NEGATIVE (NEG, N, –)
ungrounded post of battery. Connect POSITIVE (RED) clamp to vehicle chassis or engine block away from battery. Do n o t
connect clip to carburetor, fuel lines or sheet-metal body parts. Connect to a heavy gauge metal part of the frame or engine
b l o c k .
7. When disconnecting charger, disconnect AC cord, remove clamp from vehicle chassis, and then remove clamp from battery
t e r m i n a l .
8. Do not charge the battery while the engine is operating.
9. See operating instructions for length of charge information.
C A U T I O N : A spark near the battery may cause an explosion. Follow these steps to reduce the risk of a spark near the battery
when the battery
has been removed from a vehicle:
1. Check polarity of battery posts. Positive post (marked POS,P, +) usually has a larger diameter than the Negative battery post
(marked NEG, N, –).
2. Attach a 24-inch (minimum length) #6 AWG insulated battery cable to the N E G AT I V E b a t t e ry post (marked NEG, N, –).
3. Connect the P O S I T I V E (RED) battery clamp to the P O S I T I V E b a t t e ry post (marked POS, P, + or red).
4. Stand as far back from the battery as possible, and do not face battery when making final connection.
5. Carefully connect the NEGATIVE (BLACK) charger clamp to the free end of the battery cable connected to the N E G AT I V E
terminal.
6. Set the charge rate to appropriate setting according to battery size.
7. When disconnecting charger, always do so in reverse sequence of connecting procedure and break first connection while as
far away from battery as practical.
N o t e : A marine (boat) battery must be removed and charged on shore. To charge it on board requires equipment specially
designed for marine use. This unit is NOT designed for such use.
• Check unit periodically for wear and tear. Take to a qualified technician for replacement of worn or defective parts immediately.
• Read and Understand This Instruction Manual Before Using This Unit.
SAVE THESE INSTRUCTIONS
WARNING: TO REDUCE THE RISK OF INJURY:
Follow these instructions and those published by the battery manufacturer and manufacturer of any equipment you intend to
use with this unit. Review cautionary markings on this product and on engine.
This device complies with part 15 of the FCC rules. Operation is subject to the following two conditions: (1) This device
may not cause harmful interference, and (2) This device must accept any interference received, including interference that
may cause undesired operation.
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the
FCC Rules, These limits are designed to provide reasonable protection against harmful interference to radio
communications. However, there is not guarantee that interference to radio or television reception, with can be determined
by turning the equipment off and on, user is encouraged to try to connect the interference by one or more of the following
measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between equipment and receiver.
• Connect equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
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