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90556303 BM2B.qxp:BM2B ManualEN 061708
Figure 1. 2 Amp Battery Maintainer Connection Diagram
2 AMP BATTERY MAINTAINER
110/120 VOLT AC PLUG END
CABLES
BATTERY HARNESS
CLIPS
CHASSIS
FEATURES
• The unit has two charge rate settings, controlled by one switch:
a) 2 amp: for recharging motorcycles, lawn mowers, tractors, ATVs, snowmobiles and personal watercraft
b) 1 amp: for maintenance charging RVs, speciality vehicles, antique and classic cars, marine deep cycle
batteries and more
• Maintains battery charge in stored vehicles
• Excellent for winter pre-start battery warm-up
• Includes three connector sets:
a) DC accessory plug
b) Battery harness clips
c) Battery ring terminal harness
• Charging indicators:
a) Red – bad connection, battery not able to accept charge, reverse polarity hook-up
b) Yellow – connection correct and charging
c) Green – fully charged
• UL-Listed for safety
• Fully automatic; powers on when needed, powers off when battery is fully-charged or topped-off
• Built-in circuit protection guards against overcharging or short circuit
• Automatically checks for correct polarity (requires a minimum of 2.0 volts battery voltage)
• Convenient, color-coded ring terminals/clamps for easy, correct installation
• Charges with high frequency, pure, DC current
OPERATING INSTRUCTIONS
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 "Important Safety Instructions" at the front
of this manual.
Charging Indicators
Red LED – Bad connection, battery not able to accept charge, reverse polarity connection
Yellow LED – Connection correct and charging
Green LED – Battery fully charged
When the charger is properly connected, the LED will illuminate, indicating the inside smart
circuit is functioning to judge the battery status. This procedure may take up to 2 minutes
if the battery voltage is lower than 12.8 volts.
Connecting the Charger with the Terminal Clips
The charger's output leads have color-coded battery clips (Figure 2) (RED-POSITIVE and
BLACK-NEGATIVE). These connect directly to the corresponding connectors on the battery
posts.
Follow the steps outlined in "Important Safety Instructions" at the front of this manual.
All manuals and user guides at all-guides.com
10/26/09
10:35 AM
Page 6
ACCESSORY OUTLET
DC ACCESSORY PLUG
BATTERY
BATTERY TERMINAL RINGS
BATTERY
RED
BLACK
Figure 2. Battery Clips
6
Connecting the Charger with Terminal Rings
The charger's output leads have crimped, color-coded ring terminals (Figure 4) (RED-POSITIVE and BLACK-
NEGATIVE). These rings connect directly to the corresponding connectors on the battery posts.
1. Remove the nuts from the bolts of the battery post's connectors.
2. Position the RED terminal on the bolt of the POSITIVE battery post connector.
3. Position the BLACK terminal on the NEGATIVE post connector; then replace the nuts.
4. If there is any problem connecting the output leads, check with a reputable auto supply store or contact the
Customer Service Department toll-free at (800) 544-6986 for assistance in finding an appropriate connection
device for your particular application.
Note: ALWAYS disconnect the AC power cord from the AC power outlet before connecting (or disconnecting) the
charger to (or from) the battery.
NUT
CONNECTOR
Figure 3. Ring Terminal Connection Diagram
Connecting the Charger with the DC Accessory Plug
The charger's output leads also contain a DC accessory plug (Figure 5).
1. Insert the DC plug into the vehicle's DC accessory outlet.
2. Insert the AC plug of the charger into any standard 110/120 volt
AC wall outlet.
Note: Some vehicles require that the ignition be turned to the ACC
(accessory) position to acitvate the DC accessory outlet.
Charging the Battery
1. Slide the Charge Rate Selector switch to 1 amp or 2 amps.
2. Leave the charger on.
3. Monitor the battery from time to time.
Note: A clicking sound may occur during this process. This is normal.
Fuse Replacement (DC Accessory Adapter)
1. Remove plug from accessory outlet. Remove the gold cap by turning counter clockwise and lifting off.
2. Remove center pin and spring. Remove fuse.
3. Replace fuse with same type and size fuse (5 amp).
4. Replace center pin and spring inside plug.
5. Replace gold cap by turning clockwise.
TROUBLESHOOTING
Unit Not Charging
• Check that the charger is properly connected to a live 120 volt AC outlet (the LED will illuminate).
• Check that the correct charge rate has been selected for the battery being charged.
• If the battery to be charged has fallen below 2 volts, the battery cannot be recharged with this unit.
CARE AND MAINTENANCE
With proper care and minimal maintenance, the 2 Amp Charge Rate Automatic Battery Maintainer will provide
years of dependable service. For maximum performance, manufacturer recommends:
1. Storing the unit in a clean, dry, cool place when not in use.
2. Cleaning the unit casing and cords (as necessary) with a dry (or slightly damp) cloth. Ensure that unit is
completely disconnected from battery and power source, before cleaning.
3. To maintain the operating condition and maximize the life of the charger cords, always coil them loosely for
storage. Do not wrap them around the unit or crimp them with a tight band.
TERMINAL RINGS
R
ED
BOLT
BLACK
Figure 4. Terminal Rings
Figure 5. DC Accessory Plug
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