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Owner's Manual
SC-300A
3 Amp Automatic Battery Charger
For 12-Volt Lead-Acid Batteries
Battery
Charger
Model:
Read Rules for Safe Operation and Instructions Carefully
Working in vicinity of a lead-acid battery is dangerous. Batteries generate explosive gases during normal
battery operation. For this reason, it is of utmost importance that each time before using your charger, you
read this manual and follow the instructions exactly.
–Save–
Important Safety Instructions
WARNING: Handling the cord on this product or cords associated with accessories sold with this product, will expose you to lead, a
chemical known to the State of California to cause cancer and birth defects or other reproductive harm.
Wash hands after handling.
00-99-000507/0205
SCHUMACHER ELECTRIC CORPORATION
801 BUSINESS CENTER DRIVE • MOUNT PROSPECT, ILLINOIS 60056-2179
Send Warranty Product Repairs to: 1025 E. Thompson, Hoopeston, IL 60942-0280
Call Customer Service if you have questions: 1-800-621-5485
INTRODUCTION
Your battery charger has been designed to provide years of ser-
vice. This instruction manual contains information on safety, op-
eration, and maintenance of your new charger. Make sure that
you are familiar with this information before using the charger.
This battery charger is ideal for recharging batteries in snowmo-
biles, ATVs, garden tractors and motorcycles. It also will warm
large batteries found in automobiles and marine applications.
1. Before you use your battery charger, be sure to read all
instructions written in the manual, on the charger and carton.
2. Do not expose to rain or snow.
3. The use of an attachment not recommended or sold by the
charger manufacturer may result in a risk of fire, electric
shock, or injury to persons.
4. To reduce risk of damage to electric plug and cord, pull by
plug rather than the cord when disconnecting charger.
5. 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 must be
used, make sure:
a) the pins on plug of extension cord are the same number,
size and shape as those of plug on charger.
b) the extension cord is property wired and in good electrical
condition; and
c) the wire size is large enough for AC ampere rating of
charger as specified in the following chart.
Length of cord (feet): 25 50 100 150
AWG size of cord: 18 18 16 14
6. Do not operate the charger with damaged cord or plug replace
them immediately.
7. 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 person.
8. Do not disassemble charger; take it to a qualified service
person when service or repair is necessary. Incorrect
assembly may result in a risk of electric shock or fire.
9. To reduce risk of electrical shock, unplug the charger from
outlet before attempting any maintenance or cleaning.
10. 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 YOUR CHARGER; YOU READ
THIS MANUAL AND FOLLOW THE INSTRUCTIONS
EXACTLY.
To reduce the risk of battery explosion, follow these
instructions and those published by the battery manufacturer.
Review the cautionary markings on the battery charger and
battery.
A. GENERAL BATTERY SAFETY