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FEATURES
• The unit has two voltage rate settings (6v, 12v), controlled by one switch:
a) Use for battery maintenance, charging RVs, speciality vehicles, antique and classic cars, marine deep cycle
batteries, motorcycles, lawn mowers, tractors, ATVs, snowmobiles. personal watercraft and more.
• Maintains battery charge in stored vehicles
• 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) Blinking Green – connection correct and charging
c) Solid Green – fully charged
• ETL-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
Mounting Instructions:
BM3B battery maintainer is designed to be able to mount to flat surface.
The unit has incorporated two mounting holes at the corners of the unit.
Note: Always disconnect the maintainer at AC power source and at battery terminal when mounting the unit.
To mount the unit:
1. Make sure the surface is flat and free of obstruction so the unit can rest flat on the surface.
2. Make sure the unit is disconnected from both AC power source and the battery.
3. Use 8/32 inches (6.35mm) wood screw to mount the unit through the mounting hole.
4. Do not over tighten the screw, it will damage the housing.
5. Connect the unit to AC power outlet and the unit is ready for use.
WARNING:Do not put the screw through the plastic housing as this will permanently damage the unit and cause
potential electrical hazard.
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.
6
BATTERY TERMINAL RINGS
DC ACCESSORY PLUG
6V/12V BATTERY MAINTAINER
BATTERY TERMINAL CLAMPS
1
110/120 VOLT
AC PLUG END
6 VOLT / 12 VOLT SWITCH
Charger Connector
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