
10
BEFORE USE
●
What is CCA?
CCA stands for Cold Cranking Amperes. It is defined as the current a battery at 0
°
F
(-18
°
C) can discharge for 30 seconds and maintain at least 7.2V (for JIS, SAE and
BCI). And it is defined as the current a battery at 0
°
F (-18
°
C) can discharge for 10
seconds and maintain at least 7.5V (for EN and DIN). The battery which has the
bigger CCA, the higher ability to start an engine, CCA is one of the criterion for
selection of the battery.
●
What is SOH (State of Health)?
SOH is the health condition of the battery, the state is expressed in percentage (%).
1. Technical Words
The current discharge at 0
°
F (-18
°
C) for 30 seconds
and maintain at least 7.2V.
The current discharge at 0
°
F (-18
°
C) for 10 seconds
and maintain at least 7.5V.
CCA definition of various standards
Standards
Countries
CCA Definition
JIS
SAE
BCI
EN
DIN
Japan
USA
USA
EU
Germany
●
What is SOC (State
of
Charge)
?
SOC is the charging condition of the battery, the state is expressed in percentage (%).
Definition of SOH in this product
:
ET8636
defines SOH 23% as the threshold of the battery replacement recommendation.
Test
result shows "Replacement is necessary" when measured SOH is 23% or less and test
result of SOC is not "Charge/Retest".
※
SOH(%) is calculated as the ratio of CCA standard value to CCA measured value.
※
SOH(%) fluctuates due to the rate of deterioration and charging condition.
Definition of SOC in this product
:
ET8636
defines as SOC 100% when the battery voltage is higher than 12.756V. (Higher than
13.056V for the battery for industry)
※
ET8636
does not show the exact measurement voltage when testing the battery just after
an engine shutdown or just after charging. Test the battery after reducing the stimulated
condition according to the procedure mentioned in Page 12.