General Safety Warnings
WARNING: Read all safety warnings, instructions, illustrations and specifications provided with
this power tool. Failure to follow all instructions listed below may result in electric shock, fire and/
or serious injury.
Save all warnings and instructions for future reference.
a) Even when used as prescribed it is not possible to eliminate all residual risk factors. Use
with caution.
b) If you are at all unsure of the correct and safe manner in which to use this product, do not
attempt to use it.
c) Accidents can occur where work areas are cluttered or dirty. Keep floors clear, and make
yourself aware of all potential slip and trip hazards.
d) Children and pets should always be kept well away from your work area. DO NOT allow
children, or untrained persons to use this product.
e) DO NOT wear loose fitting clothing, neckties, jewellery, or other items which may become
caught.
f) Long hair should be covered or tied back.
g) DO NOT overreach, always keeping proper footing. DO NOT work on an unstable surface.
h) Before use, check if any part of this product is damaged or missing. Any part that is
damaged should be immediately repaired or replaced by an authorised service centre. DO NOT
use if defective.
i) Always wear appropriate personal protective equipment for the job that you are to do.
Specific Battery & Charging System
Tester Safety Warnings
a) Ensure tester is kept dry. DO NOT use to test wet batteries or charging systems.
b) DO NOT use in adverse weather conditions. Weather with high levels of atmospheric humidity
(such as fog) or strong electrostatic fields (such as thunderstorms) could cause injury or harm and
produce inaccurate results.
c) DO NOT use if you suspect the presence of flammable liquids or ignitable dust either
on the tester, the testing subject or in the area surrounding both. Clean all terminals
thoroughly before testing.
d) When carrying the tester, ensure all cables are secure. DO NOT allow cables to trail loose.
e) When loading, the tester can potentially become hot. Ensure you follow instructions on load
times and that your hand protection has adequate heat resistance.
f) Ensure that there is adequate ventilation around the tester. DO NOT allow the ventilation
holes to become obscured in any way.
g) Ensure enough clearance is left for the safe disconnection of the tester from the testing
subject.
h) Ensure any non-conductive protectors, such as the handles for the lead ends, are in good
condition.
Product Familiarisation
1
Earth Lead
2
Positive Lead
3
Dial
4
Zero Adjustment Screw
5
Load Switch
Intended Use
Battery and Charging System Tester for applying high current load tests, measuring the condition
of suitable 6V and 12V lead-acid batteries and checking the performance of charging systems. For
indoor home or workshop use.
Not intended for commercial use.
The product must ONLY be used for its intended purpose. Any use other than those mentioned
in this manual will be considered a case of misuse. The operator, and not the manufacturer, shall
be liable for any damage or injury resulting from such cases of misuse. The manufacturer shall
not be liable for any modifications made to the product, nor for any damage resulting from such
modifications.
Battery & Charging System Tester
Before Use
WARNING: Ensure engine is stopped, and all loads disconnected.
Note: On some vehicles it may be desirable to remove the battery from the vehicle.
• The needle of the Dial (3) should point to '0' when the tester is not in use. Adjust the position of
the needle by rotating the Zero Adjustment Screw (4) to ensure an accurate reading.
• Ensure battery terminals are clean and free from corrosion.
Operation
Testing a battery
1. Connect the Positive Lead (2) to the positive (+) terminal of the battery.
2. Connect the Earth Lead (1) to the negative (-) terminal of the battery.
3. Check the readout. If a 12V battery reads below 12V, or if a 6V battery reads below 6V, it will need
to be recharged before further testing.
WARNING: Do not hold the Load Switch (5) in the 'ON' position for more than 10 seconds.
During the load test, the tester may get hot.
4. Move the load switch to the 'ON' position (to the right), and allow the Dial (3) needle to stabilise.
See table below:
Needle position
Green 'OK' section
Yellow 'WEAK' section
Red 'BAD' section
WARNING: Allow at least 1 full minute for the tester to cool before performing another test.
Note: 6V and 12V batteries have separate scales on the dial. Check that you are referring to the
correct scale for your battery. The green section of the 12V battery section is stepped to indicate a
good condition for different battery capacities, refer to the battery's CCA rating to determine the
correct range.
Battery test analysis
If the tester confirms a yellow section or red section result during the battery's test, the battery could
be defective or partly discharged. Further information can be understood on the battery's condition
by using a hydrometer and following the manufacturer's instructions.
Testing a charging system
WARNING: This test requires the vehicle's engine to be running. Internal combustion engines
produce carbon monoxide, and other harmful fumes. Never conduct tests with the vehicle in any
kind of enclosed area, good ventilation is essential for your safety.
WARNING: This test is not suitable for 6V systems.
Note: DO NOT flip the Load Switch (5) at any point during this test.
1. Connect the leads to the battery as described in steps 1-2 in 'Testing a battery' .
2. Start the engine, and allow to idle steadily (between 1200-1500min
3. Read the Dial (3) and consult the table below:
Needle position within 'CHARGING SYSTEM'
Left red section
Within green 'OK' section
Right red section
Testing the starter
WARNING: This test requires you to disable the ignition system of the engine to prevent it
starting. Refer to vehicle manufacturer's guidance for information on how to safely do this.
Note: The battery should be fully charged, in good condition and the engine at normal operating
temperature for this test.
silverlinetools.com
Battery condition
Battery is in good condition and is ready
for use.
Battery is in poor condition, needs recharging,
or may be damaged.
Battery is in very poor condition and will
require a full recharge or replacement.
).
-1
Result
System is undercharging battery
System is nominal
System is overcharging battery
5