GR8-1200 OEM
Midtronics Inc. 7000 Monroe Street Willowbrook, IL 60527
www.midtronics.com
23
Chapter 5: Diagnostic Charging
Table 8: Battery Ratings
Ratings
Description
Range
CCA
Cold Cranking Amps (speci
fi
ed
by SAE): The amount of current
a battery can provide at 0 ºF
(–17.8 ºC).
100 to 3000
CA
Cranking Amps: The amount of
current a battery can provide at
32°F (0 ºC).
100 to 3000
JIS
Japanese Industrial Standard:
(shown on a battery as a
combination of numbers and
letters.
72 numbers
from 26A17
to 245H52
DIN (A)
Deutsche Industrie-Norm
100 to 1000
SAE (A) European labeling of CCA
100 to 3000
IEC (A)
International Electrotechnical
Commission
100 to 1000
EN (A)
Europa-Norm
100 to 1700
MCA
Marine Cranking Amps: The
amount of current a battery can
provide at 32°F (0 ºC).
100 to 3000
7. Press an UP or DOWN ARROW key to select the BATTERY
RATING. Press ENTER.
?
CCA
If you select JIS, the analyzer will ask for the JIS part
number. Scroll to the part number. To increase your
scrolling speed, hold the UP or DOWN ARROW key, or use
the LEFT or RIGHT ARROW key to move up or down four
part numbers at a time. Press ENTER to continue.
Charging Modes
Diagnostic Charging has four modes (Initial Analysis, Diagnostic
Mode, Recovery Mode, Top-Off Mode) that the GR8 may use to
determine the State-of-Health of the battery while bringing it
to a full State-of-Charge.
Initial Analysis
The GR8 first analyzes the battery and makes a decision:
GOOD BATTERY, REPLACE BATTERY, or REPLACE-BAD CELL. For
diagnostic charge analysis, progress is shown by the left to
right movement of a progress bar.
Deep Scan Test
In some cases the GR8 may need to further analyze the battery
to determine whether the battery should be replaced or it has
a signifi cant chance to be recovered. It will then conduct a
Deep Scan Test of the battery for a few seconds.
After the Deep Scan Test the GR8 will either display the results
or give you the option to perform the 5-Minute Discharged
Battery Test. Although this test takes several minutes, it gives
a more precise result for diffi
cult-to-diagnose batteries. The
decision tree of the test is shown below.
Diagnostic Mode
Once the GR8 determines that the battery is good, needs
charging, and is safe to charge, it proceeds to Diagnostic
Charge Mode. During the charging session, the GR8 provides
updates of the charging voltage, charging current, remaining
time to charge, charging mode, and the amount of charge
replenished into the battery in amp-hours. The GR8 continues
to test the battery throughout Diagnostic Mode and may
determine at some point that the battery needs to be
replaced.
NOTE
:
The actual time needed to charge the bat-
tery may be less than the estimated time depend-
ing on the battery’s charge acceptance.
When the battery requires testing, the display alternates
between the CHARGING and TESTING screens. The TESTING
screens represent a two-step process.
Step 1: The GR8 applies an electrical load and tests the bat-
tery’s response.
Step 2: The GR8 measures the battery’s CCA.
.
