• Never immerse the battery charger in water or any other liquid, or use when wet.
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.
• THIS UNIT IS NOT FOR USE BY CHILDREN AND SHOULD ONLY BE OPERATED BY ADULTS.
WARNING: TO REDUCE THE RISK OF FIRE:
• Do not operate near flammable materials, fumes or gases.
• Do not expose to extreme heat or flames.
• If the vehicle accessory outlet fuse opens (blows) when plugging in this battery charger, do not use this battery charger with this vehicle
accessory outlet:
–Do not repeatedly replace the fuse.
–Do not replace the vehicle accessory outlet fuse with one of a higher amperage rating.
–Never attempt to patch the fuse with tin foil or wire.
• Any of these actions may cause serious electrical damage and/or a fire.
CAUTION: TO REDUCE THE RISK OF INJURY OR PROPERTY DAMAGE:
• NEVER ATTEMPT TO 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 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 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.
• 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.
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.
Charger Location
• Locate charger as far away from battery as cables permit.
• Never place charger directly above battery being charged; gases from battery will corrode and damage charger.
• Never allow battery acid to drip on charger when reading gravity or filling battery.
• Never operate charger in a closed-in area or restrict ventilation in any way.
• Marine batteries must be removed and charged on shore.
• Do not set a battery on top of charger.
Connection Precautions
• Connect and disconnect output clamps only after removing AC cord from electric outlet.
• Never allow clamps to touch each other.
• Attach clamps to battery and chassis as indicated in “Battery Installed in Vehicle” steps 5 and 6, or in “Battery Outside of Vehicle” steps
2 to 5.
Follow these steps when the battery is 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 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.
Follow these steps when the battery 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.
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.
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.
• Check unit 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.
• LCD liquid crystal display: If liquid crystal comes in contact with your skin: Wash area off completely with plenty of water. Remove
contaminated clothing. If liquid crystal gets into your eye: Flush the affected eye with clean water and then seek medical attention. If
liquid crystal is swallowed: Flush your mouth thoroughly with water. Drink large quantities of water and induce vomiting. Then seek
medical attention.
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 this product and on engine.
INTRODUCTION
Congratulations on purchasing your Stanley
®
battery charger. Read this Instruction Manual and follow the instructions carefully
before using your new battery charger.
BC15BS_BC25BS_ManualENSP_061214.indd 6-76/12/2014 10:43:59 AM
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