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BATTERY SYSTEM TESTER
(5)After adjusting the reference test value of the battery, press
<ENTER> to star testing.
(6)It will display the result after finishing test:
(7)Press <
▲
><
▼
> to turn the page to review the other results of
the test. Press <ENTER> to return step (3) to select test
standard. Press <ESC> to return step (2) to select test function
of the battery.
5-1-3 Instruction of test result
★
Normal
Cold cranking ability Battery life
Voltage Internal resistance
Cold cranking ability Battery life
Voltage Internal resistance
6-4 Is the CCA value tested by this tester correct?
CCA is looked as a control standard with the produce of the
battery. According to the accumulated records, the tested value
of new battery is 10-15% higher than the standard value, and
along with consuming of the battery, the value is getting close to
standard, even lower afterward.
6-5 What is the difference between the method of this
tester and the load test method?
The load test method: According to the physical formula
R=V/1, test equipment forcibly make the high permanent DC
current ( presently 40-80A large current is available ) go through
the battery shortly ( about 2-3 seconds). And then the tested
voltage of the battery can be used to figure out the internal
resistance by the formula.
The disadvantage of this method:
(1) Just available for large capacitance battery or storage
battery. The small capacitance battery can not load 40-80A
large current in 2-3 seconds.
(2) When the large current going through the battery, there
comes out polarization phenomenon from internal electrode,
which can cause polarization internal resistance. As a result it
has to be tested in a short time. Otherwise there is a large error
of the internal resistance value.
(3) The internal electrode will be damage generally when large
current go through the battery.
The method of this tester:Battery is actually equivalent to an
active resistance. So we add a fixed frequency and small current
to it, and then sample the voltage value. Eventually the internal
resistance can be figured out after some operation such as
rectificationand smoothing.
The advantage of this method:
(1)It is available to almost all kinds of batteries, including the
small capacitance battery. Generally it is used to test internal
resistance of notebook battery.
(2)No much damage to the battery.
USER MANUAL
