Black & Decker 2 AMP CHARGE RATE AUTOMATIC BATTERY MAINTAINER Instruction Manual page 3

90556303 BM2B.qxp:BM2B ManualEN 061708
• 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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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.
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.
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.
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