24
State of Health (SOH)
The battery’s state of health represents its general condition,
and therefore its ability to deliver the specied performance
compared with a fresh battery.
Although a poor state-of-health can be the result of defects
in construction, it is most often caused by normal wear, which
depends on vehicle needs, climate, and operating conditions.
These cause irreversible physical and chemical changes within
the battery until it can no longer hold a charge and supply
the power to start the car and provide auxiliary power to the
electrical system.
As the battery approaches end of life, its deterioration
accelerates until it nally fails to start the vehicle. Before failing,
the battery may start the vehicle under normal conditions
but may not be able to operate in more extreme conditions.
Extreme heat or cold could expose a weak battery and cause
it to fail.
Chapter 6: Battery Test EXP-800
Table 3:
Battery Decisions
Decision Recommended Action
GOOD BATTERY Return the battery to service.
GOOD–RECHARGE Fully charge the battery and return it to service.
CHARGE REQUIRED Fully charge the battery using a Midtronics Diagnostic Charger and retest. Failure to fully charge
the battery before retesting may cause false readings. If CHARGE REQUIRED appears again
after you fully charge the battery, replace the battery.
REPLACE BATTERY A REPLACE BATTERY result may also mean a poor connection between the battery and the
vehicle. If you tested the battery using the IN-VEHICLE Test, disconnect the battery cables and
retest using the OUT-OF-VEHICLE Test before replacing it.
BAD CELL–REPLACE Replace the battery.
WARNING: Do not charge the battery. Charging a battery with one or more bad cells could
cause an explosion and serious harm to the user.
OK-REPLACE SOON The battery may fail under extreme climate conditions. A REPLACE battery result may also mean
a poor connection between the battery and the battery terminal connectors. If you tested the
battery using the
IN-VEHICLE Test
, disconnect the battery cables and retest using the
OUT-OF-
VEHICLE Test
before replacing it.
24 VOLT BATTERY 24-volt battery detected. You are attempting to test in-vehicle both batteries in a 24-volt system.
Disconnect the batteries and test them individually.
NOTES: When testing at remote posts, the ana-
lyzer may need to verify a possible REPLACE re-
sult. It will give you the option of retesting at the
battery posts.
When testing at side posts, the analyzer may nd
that the data is inconclusive and instruct you to
test with side post adapters.
To Next Page
Loading...
Need help?
General
