BESA-12P User’s manual
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24 -
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Page 23
3.
Measured:
406 CCA
It means that the battery tested has a capacity of 406 CCA power
available. CCA ratings has been used here, therefore the tested
result is in CCA and if other rating (DIN, SAE, JIS, IEC, CA, or EN)
were selected, it will base on the respective rating to calculate and
show the results in that selected rating.
4.
Rating:
630 CCA
This is the battery capacity rated output which was stated on the
label. Refer page 21 on how the rating is obtained.
Please take Note:
This output value (406 CCA) is related to the actual power available
in the battery in relation to that battery's rating (630 CCA). On
average, a new battery's CCA as measured by this tester will read
10-15 % higher than its stated rating.
As the battery ages, the CCA number measured by this tester will
decrease so it reads near its rating. While this value is not the same
as a CCA test, it is the best available measurement for showing a
battery's current condition in relation to its rating.
From the above example, a 630 CCA rated battery measuring 406
CCA available power does not mean that the battery would pass a
CCA test at 406 CCA. The available power reading shows that the
battery is not able to perform up to its rated ability (630 CCA).
In comparison to another battery when fully charged, the 630 CCA
battery measuring 406 CCA is no stronger than a 400 CCA battery
showing 400 CCA available power when fully charged.
The available power number is meant for comparison to its own
rating. In fact, in this example the 630 CCA battery is failing to
perform to its rating, while the 400 CCA battery is still working.
Basing on SAE, CCA test is a manufacturing process control test
applicable only on new, fully charged batteries. It does not produce
an actual value, but is a PASS / FAIL test.
It measures the discharge load, in amps, that a battery can supply
for 30 seconds at 0°F/-18°C while maintaining a voltage of 1.2 volts
per cell (7.2 volts per battery) or higher.
SOC
WET
GEL
AGM
100 %
12.60V or higher 12.85V or higher
12.80V or higher
90 %
12.58 V
12.77 V
12.72 V
80 %
12.44 V
12.69 V
12.64 V
75 %
12.40 V
12.65 V
12.60 V
50 %
12.20 V
12.35 V
12.30 V
