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SKU 65928 

For technical questions, please call 1-800-444-3353. 

Page 2

SAVE THIS MANuAL

Keep this manual for the safety 

warnings and precautions, assembly and 

operating instructions.  Write the product’s 

serial number in the back of the manual 

(or month and year of purchase if product 

has no number).  Keep this manual and 

the receipt in a safe and dry place for 

future reference.

IMpORTANT SAFETY 

INFORMATION

Wear ANSI-approved safety goggles 

1. 

during set up and use of the Battery & 

Alternator Tester.
Test in a well ventilated area.  Explo-

2. 

sive gases may be produced during 

testing.  Do not smoke, cause sparks, 

or strike matches near the battery 

when testing.
Always refer to the user manual of 

3. 

the battery/alternator being tested for 

testing instructions and precautions 

prior to using the Battery Tester.
Do not reverse the polarity of the 

4. 

Battery & Alternator Tester’s Ring 

Terminals or vehicle battery.
Do not expose this product to rain or 

5. 

wet conditions.
Maintain this product.  Check for 

6. 

breakage of parts and any other con-

dition that may affect this product’s 

operation.  If damaged, have the unit 

repaired before use.
Use this product in accordance with 

7. 

these instructions, taking into account 

the working conditions and the work 

to be performed.  Use of this product 

for operations different from those 

intended could result in a hazardous 

situation.

This product is not a toy.  Keep it out 

8. 

of reach of children.
Maintain labels and nameplates on 

9. 

the unit.  These carry important safety 

information.  If unreadable or miss-

ing, contact Harbor Freight Tools for a 

replacement.
People with pacemakers should 

10. 

consult their physician(s) before use.  

Electromagnetic fields in close prox

-

imity to heart pacemaker could cause 

pacemaker interference or pacemaker 

failure. 

Caution is necessary when near coil, 

spark plug cables, or distributor of 

running engine. Engine should be off 

during distributor adjustment.
The warnings, precautions, and 

11. 

instructions discussed in this instruc-

tion manual cannot cover all possible 

conditions and situations that may 

occur.  It must be understood by the 

operator that common sense and cau-

tion are factors which cannot be built 

into this product, but must be supplied 

by the operator.
Avoid dropping the Tester; this tool 

12. 

can be easily damaged.

INSTALLATION 

INSTRucTIONS

Turn the vehicle engine and all acces-

1. 

sories off.
Disconnect the BLACK (--) Negative 

2. 

cable from the vehicle battery.
Select a convenient location on or 

3. 

near the battery to attach the Bat-

tery & Alternator Tester.  Make sure 

to clean the surface to which you will 

attach the unit.
If your battery does not have a battery 

4. 

adapter (not included), you will need 

REV 09f

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