BATTERY SYSTEM TESTER
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maintain the lowest voltage of 7.2V. The unit of CCA is Ampere.
For some vehicles, especially long time used ones, it is hard to
start the engine smoothly, and has to be done twice or for some
seconds. Actually the electricity consumes most when starting
the engine. The voltage drops off from the normal value 12.5V to
10.5V even lower at the moment that large current discharge
shortly. The large CCA is very helpful to start the engine
smoothly.
★
CA
－
Cranking Ampere
The main meaning is very close to that of CCA. The unit is
Ampere also. The temperature under testing is the only one
difference between them. CCA refers to the result that
measured under -17.8°C, and CA refers to the result that
measured under 0°C. If there indicates both CCA and CA on the
battery, CCA value is lower for the reason that the lower
temperature is, the worse battery works.
★
AH
－
Ampere Hour
This is a standard written by Japanese Industrial Standard
(JIS). It is explained that the battery discharges with a fixed
ampere for 20 hours along with over 10.5V. Therefore the value
multiplied by a fixed ampere and the number of hour is Ampere
Hour. For example a battery discharges with 5 ampere fixed for
20 hours, its Ampere Hour is 100.
★
DIN
－
Deutsches Institut für Normung e.V.
Under a cold temperature of 0°F(-18°C)
,
the Ampere
quantity is 9.0V 30 seconds with the lowest voltage, while 8.0V
150seconds.
★
IEC
－
International Electrotechnical Commission
Under an average current, every battery cooled in the
situation of 0°F (-18°C)can load the lowest voltage of 8.4Vfor 60
seconds.
★
BSR
－
Battery Saving Ratio
Under an average current, every battery cooled in the
situation of 0°F(-18°C)can load the lowest voltage of 6.0Vfor
180 seconds.
★
BCI
－
Battery Commission of International
Under an average current, every battery cooled in the
situation of 0°F(-18°C) ~
-20°F(-29°C)can load the lowest
voltage of 7.2V for 30 seconds.
1
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Brief introduction
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2.Safety rules and attentions
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3.Internation electric symbol
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4.Structure of meter
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5.Instructions of functions
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5-1 Storage battery test
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5-2 Engine system activation load test
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5-3 Charging system test
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6.FAQ
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6-1 What is the measurement principle of this tester?
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6-2 Can it be affected by the installation of negative current
inside the vehicle?
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6-3 Can this tester predict when the battery become
useless?
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6-4 Is the CCA value tested by this tester correct?
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6-5 What is the difference between the method of this tester
and the load test method?
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7.Specification of storage battery
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7-1 JIS translation table
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7-2 Comparison table of DIN/EN
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8.Knowledge about automobile battery
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8-1 The internal resistance of different types of battery
differ
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8-2 It is unavailable to know the electric quantity of storage
battery by intuition
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8-3 Some common abbreviation meaning of storage
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C O N T E N T
USER MANUAL
