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Schumacher SE-1252MA User Manual

Schumacher SE-1252MA
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1
A. IMPORTANT SAFETY INSTRUCTIONS
1. SAVE THESE INSTRUCTIONS - This manual contains
important safety and operating instructions for battery charger Model SE-1252MA and
SE-3005 which is to be used with 12 volt lead acid battery only.
A BATTERY CHARGER RECEIVES AC POWER FROM THE ELECTRIC OUTLET
AND DELIVERS DC CURRENT TO THE BATTERY.
2. Before using battery charger, read all instructions and cautionary markings on (1) bat-
tery charger, (2) battery and (3) product using battery.
3. CAUTION - To reduce risk of injury, charge only lead acid type rechargeable batteries.
Other types of batteries may burst causing personal injury and damage.
4. Use of an attachment not recommended or sold by the battery charger manufacturer
may result in a risk of fire, electric shock, or injury to persons.
5. To reduce risk of damage to electric plug and cord, pull by plug rather than cord when
disconnecting charger.
6. Make sure cord is located so that it will not be stepped on, tripped over, or otherwise
subjected to damage or stress.
7. 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 extension cord must be
used, make sure:
(a) That pins on plug of extension cord are the same number, size and shape as those of
plug on charger.
(b) That extension cord is properly wired and in good electrical condition; and that wire
size is as specified below:
Length of cord (feet): 25 50 100 150
AWG size of cord: 16 14 10 8
8. Do not operate charger with damaged cord or plug - replace them immediately.
9. Do not operate charger if it has received a sharp blow, been dropped, or otherwise
damaged in any way; take it to a qualified service man.
10. Do not disassemble charger; take it to a qualified serviceman when service or repair is
required. Incorrect reassembly may result in a risk of electric shock or fire.
11. To reduce risk of electric shock, unplug charger from outlet before attempting any
maintenance or cleaning. Turning off controls will not reduce this risk.
B. WARNING - RISK OF EXPLOSIVE GASES
1. WORKING IN VICINITY OF A LEAD-ACID BATTERY IS DANGEROUS. BATTER-
IES GENERATE EXPLOSIVE GASES DURING NORMAL BATTERY OPERATION. FOR
THIS REASON, IT IS OF UTMOST IMPORTANCE THAT EACH TIME BEFORE US-
ING YOUR CHARGER, YOU READ THIS MANUAL AND FOLLOW THE INSTRUC-
TION EXACTLY.
801 BUSINESS CENTER DRIVE • MOUNT PROSPECT, IL 60056-2179 • 800-621-5485
ELECTRIC CORP.
Send Warranty Product Repairs to: 1025 E. Thompson Avenue, Hoopeston, IL 60942-0280
Call Customer Service if you have questions: 1-800-621-5485
00-00-000532/0103
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Schumacher SE-1252MA Specifications

General IconGeneral
TypeAutomatic Battery Charger
Input Voltage120V AC
Battery Types SupportedAGM, Gel
Safety FeaturesOvercharge Protection
Output Voltage6V/12V
Charging Current2 Amps
Cable Length6 ft
Output Amperage2/10/25A
Charging ModesMaintenance
Output Current2/10/25A

Summary

Important Safety Instructions

Save These Instructions

Contains important safety and operating instructions for the battery charger model.

Read All Instructions

Before using the charger, read all instructions and cautionary markings on the charger, battery, and product.

Charge Only Lead Acid Batteries

To reduce injury risk, charge only lead-acid type rechargeable batteries.

Use Recommended Attachments

Use only manufacturer-recommended attachments to avoid fire, shock, or injury.

Disconnecting Charger

Pull by the plug, not the cord, to reduce damage risk to the electric plug and cord.

Cord Placement

Ensure the cord is positioned to avoid damage or stress from being stepped on or tripped over.

Extension Cord Usage

Use extension cords only if necessary, ensuring proper plug, wiring, and wire size.

Damaged Cord or Plug

Do not operate the charger with a damaged cord or plug; replace them immediately.

Damaged Charger

Do not operate a damaged charger; take it to a qualified serviceman.

Charger Disassembly

Do not disassemble the charger; service or repair should be done by a qualified serviceman.

Unplug for Maintenance

Unplug the charger from the outlet before any maintenance or cleaning to reduce electric shock risk.

Warning: Risk of Explosive Gases

Working with Lead-Acid Batteries

Lead-acid batteries generate explosive gases; read manual and follow instructions exactly before use.

Personal Precautions

Work with Assistance

Ensure someone is within hearing range or close enough to assist when working near a lead-acid battery.

Have Water and Soap Ready

Keep fresh water and soap nearby for use if battery acid contacts skin, clothing, or eyes.

Eye and Clothing Protection

Wear complete eye and clothing protection and avoid touching eyes while working near the battery.

Acid Contact Response

Wash skin/clothing immediately with soap and water; flush eyes with cold water for 10 minutes and seek medical attention.

No Smoking or Sparks

Never smoke or allow sparks or flames near a battery or engine.

Avoid Dropping Tools

Be cautious not to drop metal tools onto the battery, which can cause sparks or short circuits.

Remove Metal Items

Remove personal metal items like rings and watches when working with lead-acid batteries to prevent severe burns.

Use for Lead-Acid Only

Use the charger for lead-acid batteries only; do not use for dry-cell batteries.

Do Not Charge Frozen Battery

Never attempt to charge a frozen battery, as it may burst and cause injury.

Handling Cords (California Prop 65)

Handling cords may expose you to lead, a chemical known to cause cancer and birth defects; wash hands after.

Preparing to Charge

Remove Battery from Vehicle

If removing battery, disconnect the grounded terminal first and turn off vehicle accessories.

Ventilate Charging Area

Ensure the area around the battery is well-ventilated during charging; use a fan to blow gases away.

Clean Battery Terminals

Clean battery terminals carefully, avoiding contact of corrosion with eyes.

Add Distilled Water

Add distilled water to each cell to the specified level, but do not overfill.

Follow Manufacturer Precautions

Study battery manufacturer's specific precautions, such as removing cell caps or recommended charge rates.

Charger Location

Distance from Battery

Locate the charger as far away from the battery as the DC cables permit.

Avoid Charger Above Battery

Never place the charger directly above the battery being charged to prevent corrosion damage.

Prevent Acid Dripping

Never allow battery acid to drip onto the charger when checking specific gravity or filling the battery.

DC Connection Precautions

Connect/Disconnect Clips

Connect and disconnect DC clips only after removing the AC cord from the outlet. Never let clips touch.

Connecting Battery Installed in Vehicle

Position Cords Safely

Position AC and DC cords to reduce risk of damage from moving engine parts.

Stay Clear of Moving Parts

Stay clear of fan blades, belts, pulleys, and other parts that can cause injury.

Check Battery Polarity

Check battery post polarity; POSITIVE (+) is usually larger diameter than NEGATIVE (-).

Determine Grounded Post

Determine which battery post is grounded to the chassis (refer to step 5 or 6).

Negative Grounded Vehicle Connection

Connect POSITIVE (RED) to battery POSITIVE, NEGATIVE (BLACK) to chassis/engine block away from battery.

Positive Grounded Vehicle Connection

Connect NEGATIVE (BLACK) to battery NEGATIVE, POSITIVE (RED) to chassis/engine block away from battery.

Disconnecting Order

Disconnect AC cord, then chassis clip, then battery terminal clip.

Connecting Battery Outside Vehicle

Check Battery Polarity

Check battery post polarity; POSITIVE (+) is usually larger diameter than NEGATIVE (-).

Attach Negative Cable

Attach at least a 24-inch-long 6-gauge insulated cable to the NEGATIVE (-) battery post.

Connect Positive Clip

Connect the POSITIVE (RED) charger clip to the POSITIVE (POS, P. +) post of the battery.

Connect Negative Clip

Position yourself away from the battery and connect the NEGATIVE (BLACK) clip to the free end of the cable.

Final Connection

Do not face the battery when making the final connection.

Disconnecting Procedure

Disconnect in reverse sequence of connecting, breaking the first connection as far from the battery as practical.

Grounding and AC Power Cord Connection

Grounding Requirements

Charger must be grounded via a three-prong plug and properly installed, grounded outlet.

Adapter Usage

Temporary adapters may be used if a grounded outlet is unavailable, but a proper outlet should be installed.

Grounding Adapter

Ensure adapter's ground connection is secured to a properly grounded outlet plate screw.

Output Current Selector Switch

2 Amp Position

Used for batteries larger than 10 AH, primarily for 10-30 AH batteries (motorcycles, garden tractors).

10 Amp Position

Used for batteries larger than 30 AH; avoid using on smaller batteries to prevent gassing and overheating.

Start Position

Provides up to 50 Amp for cranking; limited to 10 seconds on, 3 minutes off; not for charging.

Battery Type Selector Switch

Switch Settings

Groups Deep Cycle/Maintenance Free and Conventional batteries; sets charge voltage accordingly.

Deep Cycle Setting Caution

Do not use Deep Cycle setting on conventional batteries as it may cause overcharging.

Automatic Features

Charge Cycle

Charge current cycles on/off as battery approaches full charge; off time increases with charge state.

Connection and Depletion

No sparks on connection; current flows after delay. Charger requires battery terminal voltage above 3 volts.

Amp Meter

Meter Function

Indicates charge current drawn by the battery; current decreases as the battery approaches full charge.

Battery Charging

Review Preparation

Review Section D for battery preparation before charging.

Set Switches and Connect

Set battery type and charge rate switches, then connect to a 12-volt battery and plug into AC outlet.

Charge Period

Charge Time Factors

Charge time depends on battery size (AH), current charge level, and charge rate (chart provided).

Indication of a Fully Charged Battery

Meter Reading

Meter pointer rests on 0 Amp with occasional pulse up.

Hydrometer Reading

Hydrometer reading of electrolyte indicates 1.250 to 1.285.

Fluid Bubbles

Bubbles may appear on fluid surface at 80-85% charge; discontinue if bubbles become more vigorous.

Problem Checklist

No Meter Reading

Check AC outlet connection and battery charger clips for clean, tight connections.

Circuit Breaker Cycling

May indicate a severely discharged battery or a defective battery requiring replacement.

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