Black & Decker BM2B Instruction Manual

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2 AMP CHARGE RATE AUTOMATIC BATTERY MAINTAINER

INSTRUCTION MANUAL

Catalog Number BM2B

TO REDUCE THE RISK OF INJURY, THE USER MUST READ AND
UNDERSTAND THE INSTRUCTION MANUAL

SAVE THIS MANUAL FOR FUTURE REFERENCE.

Cat. # BM2B Form # 90556303
October 2009 Copyright © 2009 Black & Decker Printed in China

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BLACK & DECKER S.A. DE C.V.

BOSQUES DE CIDROS ACCESO RADIATAS NO. 42

COL. BOSQUES DE LAS LOMAS.

05120 MÉXICO, D.F

TEL. [phone]

01 800 847 2309/01 800 847 2312

SECCI N
AMARILLA

Si funciona…

y funciona muy bien.

Vea “Herramientas

eléctricas (Tools-Electric)”

– Páginas amarillas –

para Servicio y ventas

Grupo Realsa en herramientas,
S.A. de C.V.

Súper Manzana 69 MZ.01 Lote 30
(Av. Torcasita)
Col. Puerto Juárez
Cancún, Quintana Roo
Tel. [phone]

Ferre Pat de Puebla, S.A. de C.V.

16 de Septiembre No. 6149
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Puebla, Puebla
Tel. [phone]

Ferre Pat de Puebla, S.A. de C.V.

Ejército Mexicano No. 15
Col. Ejido 1ro. de Mayo
Boca del Rio, Veracruz
Tel. [phone]

Servicio de Fabrica Black & Decker,
S.A. de C.V.

Lázaro Cardenas No. 18
Col. Obrera
Distrito Federal
Tel. [phone]

Representaciones Industriales Robles,
S.A. de C.V.

Tezozomoc No. 89
Col. La Preciosa
Distrito Federal
Tel. [phone]

Gpo. Comercial de Htas. y Refacciones
de Occidente, S.A. de C.V.

Av. La Paz No. 1779
Col. Americana, S. Juaréz
Guadalajara, Jalisco
Tel. [phone]

Herramientas y Equipos Profesionales

Av. Colón 2915 Ote.
Col. Francisco I. Madero
Monterrey, Nvo. León
Tel. [phone]

Htas. Portátiles de Chihuahua,
S.A. de C.V.

Av. Universidad No. 2903
Col. Fracc. Universidad
Chihuahua, Chihuahua
Tel. [phone]

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Bolivia No. 605
Col. Felipe Carrillo Puerto
Cd. Madero, Tampico
Tel. [phone]

Perfiles y Herramientas de Morelia

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Morelia, Michoacán
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Av. de la Solidaridad No. 12713
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Irapuato, Guanajuato
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Hernández Martinez Jeanette

Prolongación Corregidora Nte. No. 1104
Col. Arboledas
Queretaro, Qro.
Tel. [phone]

SOLAMENTE PARA PROPOSITOS DE MEXICO

PARA OTRAS LOCALIDADES LLAME AL 01 800 847 2309 o 01 800 847 2312.

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in line voltage resulting in loss of power and overheating. The following table shows the correct size to use
depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the
gage number, the heavier the cord.

• OUTDOOR USE EXTENSION CORDS. When tool is used outdoors, use only extension cords intended for use

outdoors and so marked.

WARNING: BURST HAZARD: Do not use the unit for charging dry-cell batteries that are commonly used with

home appliances. These batteries may burst and cause injury to persons and damage property. Use the unit for
charging/boosting a LEAD-ACID battery only. It is not intended to supply power to a low-voltage electrical system
other than in a starter-motor application.

WARNING: SHOCK HAZARD:

• If an extension cord is used, make sure that:
a) the pins of extension cord are the same number, size and shape as those in the battery maintainer,
b) the extension cord is properly wired and in good electrical condition,
c) the wire size is large enough for the AC rating of the charger as indicated in the table on page 2.

• Do not operate unit with damaged cord or plug; or if the unit has received a sharp blow, been dropped, or
otherwise damaged in any way. Do not disassemble the unit; take it to a qualified service technician when
service or repair is required. Incorrect reassembly may result in a risk of electric shock or fire, and will void
warranty.

• Use of an attachment not supplied, recommended or sold by manufacturer specifically for use with this unit may
result in a risk of electrical shock and injury to persons.

• NEVER submerge this unit in water; do not expose it to rain, snow or use when wet.

• To reduce risk of electric shock, disconnect the unit from any power source before attempting maintenance or
cleaning. Turning off controls without disconnecting will not reduce this risk.

WARNING: RISK OF EXPLOSIVE GASES:

• Working in the vicinity of a lead acid battery is dangerous. Batteries generate explosive gases during normal
battery operation. For this reason, it is of the utmost importance that each time before using the battery maintainer
you read this manual and follow instructions exactly.

• To reduce the risk of battery explosion, follow these instructions and those published by the battery
manufacturer and manufacturer of any equipment you intend to use in the vicinity of the battery. Review
cautionary markings on these products and on the engine.

• This equipment employs parts (switches, relays, etc.) that produce arcs or sparks. Therefore, if used in a garage
or enclosed area, the unit MUST be placed not less than 18 inches above the floor.

• THIS UNIT IS NOT FOR USE BY CHILDREN AND SHOULD ONLY BE OPERATED BY ADULTS.

CAUTION: TO REDUCE THE RISK OF INJURY OR PROPERTY DAMAGE:

• Pull cord by plug rather than cord when disconnecting the 120V AC Charging Adapter from the unit.

• NEVER ATTEMPT TO JUMP-START OR CHARGE A FROZEN BATTERY.

• To recharge this unit, use only the supplied AC Charging Adapter.

• 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 immediate assistance is available 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.

Minimum Gauge for Cord Sets

Volts Total Length of Cord in Feet

120V 0-25 26-50 51-100 101-150

(0-7,6m) (7,6-15,2m) (15,2-30,4m) (30,4-45,7m)

240V 0-50 51-100 101-200 201-300

(0-15,2m) (15,2-30,4m) (30,4-60,9m) (60,9-91,4m)

Ampere Rating

More Not more American Wire Gauge
Than Than
0 - 6 18 16 16 14
6 -101816 14 12
10 -121616 14 12
12 - 16 14 12 Not Recommended

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SAFETY GUIDELINES / DEFINITIONS

DANGER: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious

injury.

WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious

injury.

CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate

injury.
CAUTION: Used without the safety alert symbol indicates potentially hazardous situation which, if not avoided,

may result in property damage.
RISK OF UNSAFE OPERATION. When using tools or equipment, basic safety precautions should always be

followed to reduce the risk of personal injury. Improper operation, maintenance or modification of tools or
equipment could result in serious injury and property damage. There are certain applications for which tools and
equipment are designed. Black & Decker strongly recommends that this product NOT be modified and/or used for
any application other than for which it was designed. Read and understand all warnings and operating
instructions before using any tool or equipment.

IMPORTANT SAFETY INSTRUCTIONS

GENERAL SAFETY WARNINGS AND INSTRUCTIONS FOR ALL APPLIANCES

READ ALL INSTRUCTIONS

WARNING: Read all instructions before operating product. Failure to follow all instructions listed below may

result in electric shock, fire and/or serious injury.

• AVOID DANGEROUS ENVIRONMENTS Don’t use appliances in damp or wet locations. Don’t use appliances in the

rain.

• KEEP CHILDREN AWAY. All visitors should be kept at a distance from work area.

• STORE IDLE APPLIANCES INDOORS. When not in use, appliances should be stored indoors in dry, and high or

locked-up place – out of reach of children.

• DON’T FORCE APPLIANCE. It will do the job better and with less likelihood of a risk of injury at the rate for which

it was designed.

• USE RIGHT APPLIANCE. Do not use the appliance for any job except that for which it is intended.

• DRESS PROPERLY. Do not wear loose clothing or jewelry. They can be caught in moving parts. Rubber gloves and

substantial, non-skid footwear are recommended when working outdoors. Wear protective hair covering to contain
long hair.

• USE SAFETY GLASSES AND OTHER SAFETY EQUIPMENT. Use safety goggles or safety glasses with side shields,

complying with applicable safety standards and, when needed, a face shield. Also use face or dust mask if
operation is dusty. This applies to all persons in the work area. Also use a hard hat, hearing protection, gloves,
safety shoes and dust collection systems when specified or required. Safety glasses or the like are available at
extra cost at your local dealer or Black & Decker Service Center.

• DON’T ABUSE CORD. Never carry appliance by cord or yank it to disconnect from receptacle. Keep cord from

heat, oil, and sharp edges.

• DON’T OVERREACH. Keep proper footing and balance at all times.

• DISCONNECT APPLIANCES. Disconnect the appliance from the power supply when not in use, before servicing,

and when changing accessories such as blades and the like.

• AVOID UNINTENTIONAL STARTING. Don’t carry plugged-in appliance with finger on switch. Be sure switch is off

when plugging in.

• GROUND FAULT CIRCUIT INTERRUPTER (GFCI) protection should be provided on the circuits or outlets to be

used. Receptacles are available having built in GFCI protection and may be used for this measure of safety.

• USE OF ACCESSORIES AND ATTACHMENTS. The use of any accessory or attachment not recommended for use

with this appliance could be hazardous. Note: Refer to the accessory section of this manual for further details.

• STAY ALERT. Watch what you are doing. Use common sense. Do not operate tool when you are tired.

• CHECK DAMAGED PARTS. Before further use of the tool, a guard or other part that is damaged should be

carefully checked to determine that it will operate properly and perform its intended function. Check for alignment
of moving parts, binding of moving parts, breakage of parts, mounting, and any other conditions that may affect
its operation. A guard or other part that is damaged should be properly repaired or replaced by an authorized
service center unless otherwise indicated elsewhere in this instruction manual. Have defective switches replaced by
authorized service center. Do not use tool if switch does not turn it on and off.

• DO NOT OPERATE portable electric tools near flammable liquids or in gaseous or explosive atmospheres. Motors

in these tools normally spark, and the sparks might ignite fumes.

• EXTENSION CORDS. Make sure your extension cord is in good condition. When using an extension cord, be

sure to use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop

90556303 BM2B.qxp:BM2B ManualEN 061708 10/26/09 10:35 AM Page 2

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Follow these steps when the battery has been removed from a vehicle. A spark near the battery may cause
an explosion.

WARNING: 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. 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.

Note: 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 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 these products and on engine.

INTRODUCTION

Thank you for selecting the

Black & Decker®2 Amp Charge Rate Automatic 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 manual, before installing or using this device. The manual should then be retained for quick
reference whenever the unit is used. Figure 1 shows the battery charger and its components.

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. This limits are designed to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If equipment does cause harmful interference to radio
or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to
correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between equipment and receiver.

• Connect the 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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• 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 the like of a metal,
causing a severe burn.

• 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.

• FIRST AID – 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.

Power Cord Safety:

This appliance has a polarized plug (one blade is wider than the other) as a safety feature. This plug will fit into a
polarized outlet only one way. If the plug does not fit fully into the outlet, reverse the plug. If it still does not fit,
contact a qualified electrician. Do not attempt to defeat this safety feature.

Preparing to Charge

1. Determine voltage of battery to be charged by referring to the vehicle manual.

2. 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. Area around battery should be well ventilated while battery is being charged. Gas can be forcefully blown

away by using a piece of cardboard or other nonmetallic material as a fan.

7. Make sure the initial charging rate does not exceed battery manufacturer’s requirement.

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.

DC Connection Precautions

1. Connect and disconnect DC output clamps only after removing AC cord from electric outlet.

2. Never allow clamps to touch each other.

3. Attach clamps to battery chassis as indicated in “Battery Installed in Vehicle” steps 5 and 6, and in “Battery

Outside of Vehicle” steps 2, 4 and 5.

Follow these steps when the battery is installed in a vehicle. A spark near the battery may cause an explosion.

WARNING: TO REDUCE RISK OF A SPARK NEAR THE BATTERY:

1. Position AC and DC 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, –) post.

4. 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.

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 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.

7. When disconnecting charger, disconnect AC cord, remove clamp from vehicle chassis, and then remove

clamp from battery terminal.

8. Do not charge the battery while the engine is operating.

9. See operating instructions for length of charge information.

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