-
9
-
*Touch the po)lead to the battery case around the positive (+) battery
post ,Do not touch the post .
A reading of more than 0.5V indicates excessive surface discharge .
Dirt ,moisture and corrosion are a cause of surface discharge .clean the battery
with a baking soda and water solution .do not allow the solution to get into the
battery.
[2]Static Battery Test (No Load)
This test checks for battery change state.
·
Turn the headlights on for 15 seconds to dissipate battery surface charge.
IMPORTANT :
The ignition switch
must be OFF when connecting or
disconnecting battery cables to
prevent damaging the vehicle
computer.
·
Disconnect the negative (-)
battery terminal.
·
Set the rotary switch to voltage.
·
Connect the positive (+) lead to
the positive (+) battery post.
·
Connect the negative (-) lead to
the negative (-) battery post.
A reading of less than 12.4V indicates an undercharged battery. Recharge
before testing.
NO LOAD TEST
Meter Reading
Battery Charge
12.6V
100%
12.4V
75%
12.2V
50%
12.0V
25%
NOTE:
Leave the battery cable unhooked and proceed to the test
on the following page.
[3] Battery Test (Parasitic Load)
This is for excessive parasitic drain on the battery.
·
Turn the ignition switch and all accessories OFF.
IMPORTANT:
Do not start the vehicle during this test ; meter damage may
result.
·
Set the rotary switch to 20A.
·
Insert the positive (+) lead into the
10A meter terminal.
·
Disconnect the battery positive (+)
cable .
·
Connect the positive (+) lead to the
positive (+) battery terminal.
·
Connect the negative (-) lead to
the Disconnect positive (+) battery
terminal.
Parasitic draw should not exceed
100mA.
If there excessive draw, remove the circuit fuse, one at a time, until the
excessive draw is located. Also check the non-fused applications such as head
lights, computer relays and capacitors in the instrument panel.
Reconnect the battery cable for the next test .