Preparing To Charge; Setting Up The Unit - Black & Decker BM3B Instruction Manual

WARNING –
TO REDUCE THE RISK OF FIRE:
• Do not operate near flammable materials, fumes or gases.
• Do not expose to extreme heat or flames.
CAUTION –
TO REDUCE THE RISK OF INJURY OR PROPERTY
DAMAGE:
• This charger is not designed for use with every make, manufacture or
model of engine. Use only with 12 volt systems.
• NEVER ATTEMPT CHARGE A FROZEN BATTERY.
• Do not charge the battery while the engine is operating.
• Vehicles that have on-board computerized systems may be damaged if
vehicle battery is jump-started. Before jump-starting, read the vehicle's
owner's manual to confirm that external-starting assistance is suitable.
• When working with lead acid batteries, always make sure someone is
close enough to provide immediate assistance in case of accident or
emergency.
• Always have protective eyewear when using this product: contact with
battery acid may cause blindness and/or severe burns. Be aware of first
aid procedures in case of accidental contact with battery acid.
• Have plenty of fresh water and soap nearby in case battery acid contacts
skin.
• If battery acid contacts skin or clothing, wash immediately with soap and
water for at least 10 minutes and get medical attention immediately.
• Never smoke or allow a spark or flame in vicinity of vehicle battery,
engine or battery maintainer.
• Be extra cautious to avoid dropping a metal tool onto the battery. It might
spark or short-circuit the battery or another electrical part, and that may
cause an explosion.
• Never allow battery acid to come in contact with this unit.
• Do not operate this unit in a closed area or restrict ventilation in any way.
• Always turn the battery charger off by unplugging it when not in use.
• Do not open the battery charger — there are no user-serviceable parts
inside. Opening the battery charger will void manufacturer's warranty.
• Operate battery charger only as described in this Instruction Manual.
• Check battery charger and components periodically for wear and tear.
Return to manufacturer for replacement of worn or defective parts
immediately.
• Do not allow plug or clamps to be exposed to the elements for long
periods of time; and never submerge them.
PERSONAL SAFETY
Stay clear of fan blades, belts, pulleys, and other parts that can cause injury
to persons.
When working with lead acid batteries, always make sure someone is close
enough to provide immediate assistance in case of accident or emergency.
Always have protective eyewear when using this product: contact with
battery acid may cause blindness and/or severe burns. Be aware of first aid
procedures in case of accidental contact with battery acid.
Have plenty of fresh water and soap nearby in case battery acid contacts
skin.
If battery acid contacts skin or clothing, wash immediately with soap and
water for at least 10 minutes and get medical attention immediately.
Remove personal metal items such as rings, bracelets, necklaces and
watches when working with a lead acid battery. A lead acid battery can
produce a short circuit current high enough to weld a ring, or similar metal
object, to skin causing a severe burn.
• SKIN: If battery acid comes in contact with skin, rinse immediately with
water, then wash thoroughly with soap and water. If redness, pain, or
irritation occurs, seek immediate medical attention.
• EYES: If battery acid comes in contact with eyes, flush eyes immediately,
for a minimum of 15 minutes and seek immediate medical attention.
WARNING –
TO REDUCE THE RISK OF INJURY OR PROPERTY
DAMAGE: Follow these instructions and those published by the
manufacturer of any engine you intend to use with this battery charger.
Review cautionary markings on the battery charger and engine.
BM3B_ManualENSP_081420.indd 4-5 BM3B_ManualENSP_081420.indd 4-5
SAVE THESE
INSTRUCTIONS
INTRODUCTION
Congratulations on purchasing your new Black + Decker 6V/12V
®
Automatic Battery Maintainer. Read this Instruction Manual and follow
the instructions carefully before using your new battery maintainer.
With proper care and use, it will give you years of dependable service.
Please read and observe all safety warnings and cautions and this entire
user's instruction manual, before installing or using this device. The
instruction manual should then be retained for quick reference whenever
the unit is used.

PREPARING TO CHARGE

1. Determine voltage of battery to be maintained by referring to the
vehicle manual.
WARNING:
To prevent damage to a battery or the battery charger,
please make sure you select the correct voltage setting (6V or 12V) for
the application
2. If it is necessary to remove battery from vehicle to charge, or to clean
terminals, always remove grounded terminal from battery first. Make
sure all accessories in the vehicle are off, so as not to cause an arc.
3. Clean battery terminals. Do not allow corrosion to come in contact
with eyes.
4. Add distilled water in each cell until battery acid reaches level specified
by battery manufacturer. This helps purge excessive gas from cells. Do
not overfill. For a battery without cell caps (maintenance free), carefully
follow manufacturer's charging instructions.
5. Study all battery manufacturer's specific precautions, such as removing
or not removing cell caps while charging, and recommended rates of
charge.
6. Remove battery completely from boat/airplane or any confined area
before charging. Area around battery should be well ventilated while
battery is being charged. Do not operate within an enclosed area.
CAUTION:
This battery maintainer does not detect, diagnose or
analyze the condition of the battery. Attempting to charge/maintain a battery
with an abnormal condition can further damage the battery. If in doubt,
have the battery checked by a qualified professional prior to using the
maintainer.
CHARGER LOCATION
• Locate battery maintainer as far away from battery as cables permit.
• Charge above freezing temperature and below 40°C (104°F).
• NEVER place battery maintainer directly above battery being charged;
gases from battery will corrode and damage charger.
• NEVER allow battery acid to drip on battery maintainer when reading
gravity or filling battery.
• NEVER operate battery maintainer in a closed-in area or restrict
ventilation in any way.
• Marine batteries 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.
• Do not set a battery on top of battery maintainer.
CONNECTION PRECAUTIONS
1. Disconnect AC cord from electric outlet before connecting or
disconnecting DC clamps or ring terminals.
2. Never allow clamps or ring terminals to touch each other.
CHARGING A BATTERY INSTALLED IN A VEHICLE
WARNING –
A spark near the battery may cause an explosion. To
reduce risk of a spark near the battery:
1. Do not charge the battery while the engine is operating.
2. Position AC and clamp cords away from hood, door, or moving engine
parts.
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3. Stay clear of fan blades, belts, pulleys, and other parts that can cause
injury to persons.
4. Check polarity of battery posts. Positive (POS, P, +) battery post usually
has larger diameter than negative (NEG, N, –) post.
5. Determine which post of battery is grounded (connected) to the chassis.
If negative post is grounded to chassis (as in most vehicles), see 5. If
positive post is grounded to the chassis, see 6.
6. 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.
7. 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 not connect clip to carburetor, fuel lines or sheet-metal
body parts. Connect to a heavy gauge metal part of the frame or engine
block.
8. When disconnecting charger, disconnect AC cord, remove clamp from
vehicle chassis, and then remove clamp from battery terminal.
9. Refer to battery manufacturer's instruction on battery charging/
maintaining procedures.
CHARGING A BATTERY THAT HAS BEEN
REMOVED FROM A VEHICLE
WARNING –
A spark near the battery may cause an explosion. To
reduce risk of a spark near the battery:
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 Negative battery post (marked NEG, N, –).
3. Connect the Positive (RED) battery clamp to the Positive battery 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 negative terminal.
6. When disconnecting charger, always do so in reverse sequence of
connecting procedure and break first connection while as far away
from battery as practical.
Check unit periodically for wear and tear. Return to manufacturer for
replacement of worn or defective parts immediately.

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
maintainer. Follow the steps outlined in the "Important Safety Instructions"
section of this manual.
MOUNTING INSTRUCTIONS
The battery maintainer is designed to be able to mount to a flat surface.
The unit features 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.
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.
WARNING:
Do not put the screw through the plastic housing as this
will permanently damage the unit and cause a potential electrical hazard.
OPERATING INSTRUCTIONS
IMPORTANT: ALWAYS disconnect the AC power cord from the AC power
outlet before connecting (or disconnecting) the charger to (or from) the
battery.
CONNECTING THE MAINTAINER AND
MAINTAINING THE BATTERY WITH THE
BATTERY CLAMPS
The charger's battery clamps are color-coded (RED-positive and BLACK-
negative).
1. Unplug the battery maintainer AC cord from the AC outlet.
2. Disconnect the battery clamps from the unit at output cord connector.
3. Connect the RED positive clamp to the positive post of the battery.
4. Connect the BLACK negative clamp to the negative post of the battery.
5. Connect the battery clamp connector to the unit connector, as far away
from the battery as possible.
6. Slide the voltage selector to proper setting and plug the AC cord into
the AC outlet.
7. Observe the blinking GREEN LED that indicates the unit is operating.
8. Leave the unit on.
9. Monitor the battery from time to time.
WARNING:
FOLLOW THE STEPS OUTLINED IN "IMPORTANT SAFETY
INSTRUCTIONS" AT THE FRONT OF THIS MANUAL TO REDUCE RISK OF
A SPARK NEAR THE BATTERY.
CONNECTING THE MAINTAINER AND
MAINTAINING THE BATTERY WITH THE
TERMINAL RINGS
Connecting the Charger with Terminal Rings
The charger's crimped terminal rings are color-coded (RED-positive and
BLACK-negative). These rings connect directly to the corresponding
connectors on the battery posts.
NUT
CONNECTOR
TERMINAL RING
1. Remove the nuts from the bolts of the battery post's connectors.
2. Position the RED terminal ring on the bolt of the positive battery post
connector.
3. Position the BLACK terminal ring 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 1-877-571-2391 for assistance in finding an
appropriate connection device for your particular application.
Charging With the Terminal Rings
1. Disconnect AC power cord from AC power outlet
2. Disconnect battery terminal clamps and DC accessory plug from the
maintainer output cable, at connector
3. With the ring terminals connected and with ring terminal connector held
as far away from battery, connect to the maintainer output cord. If the
maintainer red LED is lit, check ring terminal connections at battery.
4. Slide the voltage selector switch to 6V or 12V
5. Insert the AC plug of the battery maintainer into any standard 110/120
volt AC wall outlet.
6. Observe the blinking GREEN LED that indicates the unit is operating.
7. Leave the unit on.
8. Monitor the battery from time to time.
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