| 2 | Operating Instructions | BAT 155 Battery Tester Contents Introduction Safety Warnings and Instructions Paper Loading Before Testing Begins Testing One Battery Testing Multiple Batteries System Test Amp/Volt Meter Testing Settings Warranty Terms and Conditions BAT 155 | REV. A | October 2020...
Operating Instructions | BAT 155 Battery Tester | 3 | en Introduction The BAT 155 Battery Tester is used to test 6 and 12 volt batteries, and to test 12 and 24 volt charging systems. (ONLY 12 volt for battery pack testing) The suggested operation range is from 0 degrees Centigrade (32 degrees Fahrenheit) to 50 degrees Centigrade (122 degrees Fahrenheit) in ambient temperature.
| 4 | Contents | BAT 155 Battery Tester Safety Warnings and Instructions WARNING This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to www.P65Warnings.ca.gov.
Paper Loading/Replacement Do the following to load paper: Connect BAT 155 to battery. (See Pg. 5 for connection instructions.) Pull up the cover lifter to open the clear cover. (See Fig. 1) Insert a new paper roll into the printer compartment with the leading edge coming out from under the paper roll.
| 6 | Paper Loading/Replacement | BAT 155 Battery Tester Inspect the battery for cracked or broken case or cover. If the battery is damaged, do not use the tester. If the battery is not a sealed maintenance free type, add distilled water in each cell until the battery acid reaches the level specified by the manufacturer.
Battery Testing | BAT 155 Battery Tester | 7 | en The battery may be serviceable but with TEST RESULT decreased capacity to start the engine. The MARGINAL SOH: battery might fail under extreme climate condi- SOC: tions or with a poor connection between the...
| 8 | Battery Testing | BAT 155 Battery Tester Determine the order in which the individual batteries will be read. The tester screen will go blank between each individual battery test. It will record and display the results in the order the batteries were tested. Reconnect the red tester lead to the positive terminal, and the black tester lead to the negative terminal of the first individual battery to be tested.
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Battery Testing | BAT 155 Battery Tester | 9 | en Follow screen instructions to check CRANKING VOLTS. INTERPRETING TEST RESULTS: The system is showing a normal draw. Press CRANKING VOLTS NORMAL the Enter Key to perform the charging system test.
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| 1 0 | System Test | BAT 155 Battery Tester Follow screen instructions to continue testing the CHARGING SYSTEM with accessory loads. INTERPRETING TEST RESULTS: The system is showing a normal draw. Press RIPPLE DETECTED: the Enter Key...
System Test | BAT 155 Battery Tester | 11 | en Press the Enter Key to display a summary of CRANKING VOLTAGE XXX the system test results. Press the Arrow Down ALT. IDLE VOLTAGE XXX key to see remaining test results.
| 1 2 | Glossary | BAT 155 Battery Tester VOLT METER TEST: Plug volt probe into volt meter jack on BAT 155 Battery Tester. Touch probe tip to an accessible metal test point to measure voltage. NOTE: Never check a system that is higher than 60 V.
Glossary | BAT 155 Battery Tester | 13 | en Warranty Terms and Conditions Any battery tester found defective in material or workmanship within one year from the date of purchase by a retail customer will be repaired or replaced according to published defective return test repair procedures.
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Bosch Automotive Service Solutions, Inc. 655 Eisenhower Drive Owatonna, MN 55060 USA www.boschdiagnostics.com PN 1699503014...