AUTOMATIC 12V BATTERY
CHARGER/MAINTAINER
INSTRUCTION MANUAL
BM1S
x
SAF
SAVE THIS INSTRUCTION MANUAL FOR FUTURE REFERENCE.
© 2017 Baccus Global LLC
Boca Raton, FL 33432
(877) 571-2391
BC
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. These 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.
Changes or modifications not approved by the party responsible for compliance could void user’s authority to
operate the equipment.
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. Manufacturer 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
READ ALL INSTRUCTIONS
WARNING: Read and understand this instruction manual before using this unit. Failure to follow
all instructions listed below may result in electric shock, fire and/or serious injury.
GENERAL SAFETY WARNINGS AND INSTRUCTIONS
• This unit was designed for household use only.
• Avoid dangerous environments. Do not expose the clamps or cords to rain or snow.
• Keep children away. Keep away from children. This is not a toy!
• Store indoors. When not in use, battery chargers should be stored indoors in dry, and high or
locked-up places – out of reach of children.
• Unplug the battery charger when not in use.
SPECIFIC SAFETY INSTRUCTIONS FOR POWER
CORDS
• Don’t abuse cord. Never carry appliance by cord or yank it to disconnect from receptacle. Keep cord
from heat, oil, and sharp edges. Pull by plug rather than cord when unplugging the unit.
• 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.
Extension cords
• An extension cord should not be used unless absolutely necessary. Use of improper extension cord
could result in a risk of fire and electric shock. If an extension cord is used, make sure that the pins
of the extension cord are the same number, size and shape as those in the charger.
• 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 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.
Recommended Minimum AWG Size for Extension Cords for Battery Chargers
AC Input Rating
American Wire Gage (AWG) Size of Cord
Amperes
Length of Cord, feet (m)
Equal to or But less
25 (7.6)
50 (15.2)
100 (30.5)
150 (45.6)
greater than
than
0
2
18
18
18
16
2
3
18
18
16
14
3
4
18
18
16
14
4
5
18
18
14
12
5
6
18
16
14
12
6
8
18
16
12
10
8
10
18
14
12
10
10
12
16
14
10
8
12
14
16
12
10
8
14
16
16
12
10
8
16
18
14
12
8
8
18
20
14
12
8
6
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.
SPECIFIC SAFETY INSTRUCTIONS FOR BATTERY
CHARGERS
• Use of accessories and attachments: The use of any accessory or attachment not recommended by
manufacturer for use with this battery charger could be hazardous.
• Stay alert. Use common sense. Do not operate this equipment when you are tired or impaired.
• Check for damaged parts. A part that is damaged should be properly repaired or replaced by
manufacturer before further use unless otherwise indicated elsewhere in this instruction manual.
• Do not operate the battery charger near flammable liquids or in gaseous or explosive atmospheres.
Motors may spark, and the sparks might ignite fumes.
• Do not operate the battery charger if it has received a sharp blow, been dropped, or has been
otherwise damaged in any way. Return it to the manufacturer for repair.
• THIS UNIT IS NOT FOR USE BY CHILDREN AND SHOULD ONLY BE OPERATED BY ADULTS.
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 12V LEAD-ACID battery only. It is not intended to supply power to a low-
voltage electrical system other than in a starter-motor application.
• Never attempt to charge non-rechargeable batteries.
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 CHARGER 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.
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.
• Stay clear of fan blades, belts, pulleys, and other parts that can cause injury to persons.
• 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 charger.
• 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.
• 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.
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.
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.
SAVE THESE INSTRUCTIONS
INTRODUCTION
Thank you for selecting the Stanley
®
Automatic 12V Battery Charger/Maintainer. Use for battery
maintenance, charging RVs, speciality vehicles, antique and classic cars, motorcycles, lawn mowers,
tractors, ATVs, snowmobiles, personal watercraft and more.
FEATURES
120 VOLT
AC PLUG
REVERSE
CONNECTION
LED
CHARGING
LED
BLACK (NEGATIVE, –)
CLAMP
RED (POSITIVE, +) CLAMP
BATTERY CLAMP
CONNECTOR AND
RING TERMINAL
CONNECTOR
BATTERY TERMINAL
RINGS
FULLY
CHARGED LED
DOUBLE BARREL CHARGER
CONNECTOR
PREPARING TO CHARGE
1. Be sure area around battery is well ventilated while battery is being charged.
2. Remove battery completely from boat/airplane or any confined area before charging.
3. 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.
4. Clean battery terminals, taking care to avoid getting corrosive material in eyes.
5. 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.
6. Study all battery manufacturer’s specific precautions, such as removing or not removing cell
caps while charging, and recommended rates of charge.
7. Determine voltage of battery to be charged by referring to the vehicle manual. The unit is for
charging a 12 volt battery only.
CAUTION: This battery charger 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
BM1S maintainer.
Charger Location
1. Locate the battery charger as far away from battery as cables permit.
2. Charge above freezing temperature and below 40 degree Celsius (104 degree Fahrenheit).
3. NEVER place the battery charger directly above battery being charged; gases from battery will
corrode and damage charger.
4. NEVER allow battery acid to drip on the battery charger when reading gravity or filling battery.
5. NEVER operate the battery charger in a closed-in area or restrict ventilation in any way.
6. 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.
7. Do not set a battery on top of the battery charger.
Connection Precautions
1. Disconnect AC cord from electric outlet before connecting or disconnecting the clamps or ring
terminals.
2. Never allow clamps or ring terminals to touch each other.
3. Attach clamps to battery and chassis as indicated in the appropriate section (“Charging a
battery installed in a vehicle” or “Charging a battery that has been removed from a vehicle”).
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. Position AC and clamp cords to reduce risk of damage by hood, door, or moving engine part.
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 the 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. See operating instructions for length of charge information.
When disconnecting charger, disconnect AC cord, remove clip from vehicle chassis, and then remove
clip from battery terminal.
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. The 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) AWG #6 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.
Note:
A marine (boat) battery must be removed and charged on shore. To charge it on board requires equipment specifically
designed for marine use. This unit is NOT designed for such use.
When disconnecting the charger, always do so in reverse sequence of connecting procedure and
break first connection while as far away from battery as practical.
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 charger/maintainer. Follow the steps outlined in
the “Important Safety Instructions” section of this manual.
OPERATING INSTRUCTIONS
WARNING – TO REDUCE THE RISK OF INJURY OR PROPERTY DAMAGE:
• Always disconnect the AC plug from the AC outlet first before disconnecting the charger from the
battery to be charged.
• Ensure that all installation and operating instructions and safety precautions are understood and
always carefully follow the steps outlined in the “Important Safety Instructions” section at the
front of this manual.
Charging/Maintaining the Battery with the Battery Clamps
The battery charger’s battery clamps are color-coded (RED-POSITIVE and BLACK-NEGATIVE).
1. Make sure the battery charger is unplugged from any power source and is not connected to
a battery.
2. Insert the double barrel tip of the battery clamp cable into the double barrel tip of the double
barrel charger connector (male-to-female and female-to-male).
3. Connect the battery clamps to the battery and position the unit as far away from the battery
as possible, following the appropriate directions in the “Preparing to Charge” Section at the
front of this manual.
4. Insert the AC plug of the battery charger into a (powered) standard North American 120 volt
60Hz outlet. The Charging LED will light yellow to indicate the unit is in charging mode.
Notes:
If the clamps are incorrectly connected with regard to polarity, the Reverse Connection LED will light. Unplug the
charger; then remove the clamps. Reconnect the clamps properly.
If the Charging LED did not come on, check the connection to the battery. If the clamps are properly connected,
the battery may be in fault condition. Manufacturer suggests to have the battery tested by a qualified battery
service technician.
5. Leave the unit on. Monitor the battery from time to time.
6. When the Fully Charged LED lights green, the charging process is complete.
When disconnecting the battery charger, first unplug the AC cord, remove the clamp from the
vehicle chassis, and then remove the clamp from the battery terminal.
Charging/Maintaining the Battery with the Battery 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.
CONNECTING
NUT
CONNECTOR
TERMINAL RING
BOLT
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.
IMPORTANT: 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
1. Make sure the battery charger is unplugged from any power source and is not connected to
a battery.
2. With the terminal rings properly connected to the battery posts, connect the terminal ring
connector with the unit’s Double Barrel Charger Connector (male-to-female and female-to-
male) and position it as far away from the battery as possible.
3. Insert the AC plug of the battery charger into a (powered) standard North American 120 volt
60Hz outlet. The Charging LED will light yellow to indicate the unit is in charging mode.
Notes:
If the terminal rings are incorrectly connected with regard to polarity, the Reverse Connection LED will light.
Unplug the charger; then remove the terminal rings. Reconnect the terminal rings properly.
If the Charging LED did not come on, check the connection to the battery. If the terminal rings are properly
connected, the battery may be in fault condition. Manufacturer suggests to have the battery tested by a
qualified battery service technician.
4. Leave the unit on. Monitor the battery from time to time.
5. When the Fully Charged LED lights green, the charging process is complete.
When disconnecting the battery charger, first unplug the AC cord, and then remove the terminal
rings from the battery terminals.
TROUBLESHOOTING
Unit not charging
• Check that the battery charger/maintainer is properly connected to a live 120 volt AC outlet.
• Make sure all connections are secure.
• Check the connections for correct polarity.
• If the battery to be charged or maintained has fallen below 2 volts, the battery cannot be
recharged with this unit.
• If the maintainer does not detect battery voltage, the unit will not operate.
CARE AND MAINTENANCE
With proper care and minimal maintenance, this unit will provide years of dependable service. For
maximum performance, manufacturer recommends:
• After each use, clean the battery charger clamps — be sure to remove any battery fluid that will
cause corrosion of the clamps.
• Clean the outside case of the charger with a soft cloth and, if necessary, mild soap solution.
• Do not allow liquid to enter the charger. Do not operate when charger is wet.
• Keep the charger cords loosely coiled during storage to prevent damage to the cords.
CAUTION – TO REDUCE THE RISK OF PERSONAL INJURY OR PROPERTY DAMAGE:
• Do not use charger if cords or clamps have been damaged in any way — call Technical Support
toll-free at 1-877-571-2391.
• There are no user-serviceable parts in this unit. Do not open the unit. In the event of malfunction,
it must be returned to manufacturer for professional testing and repair. Opening the unit will void
the manufacturer’s warranty.
ACCESSORIES
Recommended accessories for use with this unit may be available from the manufacturer. If you
need assistance regarding accessories, please contact manufacturer at 1-877-571-2391.
WARNING: The use of any accessory not recommended for use with this appliance could be
hazardous.
SERVICE INFORMATION
Whether you need technical advice, repair, or genuine factory replacement parts, contact the
manufacturer at 1-877-571-2391.
FULL ONE-YEAR HOME USE WARRANTY
The manufacturer warrants this product against defects in materials and workmanship for a period of ONE (1) YEAR from the date
of retail purchase by the original end-user purchaser (“Warranty Period”).
If there is a defect and a valid claim is received within the Warranty Period, the defective product can be replaced or repaired in the
following ways: (1) Return the product to the manufacturer for repair or replacement at manufacturer’s option. Proof of purchase
may be required by manufacturer. (2) Return the product to the retailer where product was purchased for an exchange (provided
that the store is a participating retailer). Returns to retailer should be made within the time period of the retailer’s return policy
for exchanges only (usually 30 to 90 days after the sale). Proof of purchase may be required. Please check with the retailer for their
specific return policy regarding returns that are beyond the time set for exchanges.
This warranty does not apply to accessories, bulbs, fuses and batteries; defects resulting from normal wear and tear, accidents;
damages sustained during shipping; alterations; unauthorized use or repair; neglect, misuse, abuse; and failure to follow instructions
for care and maintenance for the product.
This warranty gives you, the original retail purchaser, specific legal rights and you may have other rights which vary from state to
state or province to province. This product is not intended for commercial use.
Please complete the Product Registration Card and return within 30 days from purchase of the product to: Baccus Global LLC, One
City Centre, 1 North Federal Highway, Suite 200, Boca Raton, FL 33432. Baccus Global LLC, toll-free number: 1-877-571-2391.
SPECIFICATIONS
Input:
120V AC, 60 Hz, 0.3A
Output:
12V DC, 1A
Imported by Baccus Global LLC,
One City Centre, 1 North Federal Highway, Suite 200, Boca Raton, FL 33432
www.Baccusglobal.com 1-877-571-2391
RD051817
