Testing Multiple Batteries - Bosch BAT 155 Operating Instructions Manual

TEST RESULT
MARGINAL
SOH:
SOC:
VOLTAGE:
TEST RESULT
RECHARGE AND RETEST
SOH:
SOC:
VOLTAGE:
TEST RESULT
BAD CELL REPLACE
SOH:
SOC:
VOLTAGE:
6 Testing Multiple Batteries in a Vehicle
CAUTION
Before testing a vehicle with multiple batteries, turn off the ignition
and all accessories and loads. Close all vehicle doors and the trunk
lid.
Ensure the battery terminals are clean. Wire brush them if necessary. Leaving all
the batteries connected to each other, select one battery to connect the tester
to. Clamp the red tester lead to that battery's positive terminal. Clamp the black
tester lead to the corresponding negative battery terminal.
Note: Battery pack testing can only be performed on 12V systems.
4. Select Battery Test
5. Follow screen instructions. Note: Answer "YES" to the pack test question. To
cancel test procedure press and hold Left Arrow Key
6. Tester screen will turn red if there is an issue with one of the batteries and
individual battery tests will then need to be performed.
7. Before testing the individual batteries, disconnect all cables from the
batteries.
Battery Testing | BAT 155 Battery Tester | 7 | en
The battery may be serviceable but with
decreased capacity to start the engine. The
battery might fail under extreme climate condi-
tions or with a poor connection between the
vehicle and the battery to affect the charging
function. Possible battery replacement and/or
charging system analysis may be needed.
Battery is discharged. The battery condition
cannot be determined until it is fully charged.
Recharge and retest the battery.
The battery has at least one cell short circuit. It
should be replaced immediately.
, then press the Enter Key .
.
BAT 155 | REV. A | October 2020