Battery, Testing
Battery, Testing
WARNING:
- Prior to handling or servicing batteries, read, understand and observe the Warning and Safety Measures for lead-acid batteries.
- Dispose of electrolyte (sulfuric acid/water mixture) properly. Waste electrolyte must only be disposed of in appropriate waste disposal sites. Refer to local regulations pertaining to electrolyte disposal.
- DO NOT battery test batteries which are gassing. Otherwise there is a risk of explosion.
- The following notes and procedures must be followed to ensure correct measurements.
NOTE:
- In order to better determine a battery's overall condition, it is recommended to always perform the battery test in conjunction with the electrolyte specific gravity test. Specific Gravity
- Always follow the battery tester operating instructions.
- It is not necessary to remove battery from vehicle or disconnect battery terminals.
Special tools and auxiliary items needed
- Battery Test Kit Midtronics MCR 340V
CAUTION: Before beginning repairs on the electrical system
- Switch off all electrical consumers.
- Switch ignition off and remove ignition key.
- Connect tester cable clamps to battery terminal => MCR 340V Instruction Manual Tester leads must be securely fastened and make proper contact with the battery posts.
- Clamps must have a good contact with battery terminals.
- Set tester to "Warranty Test" => MCR 340V Instruction Manual.
- Perform battery battery test by setting load current on tester according to battery (DIN) capacity => MCR 340V Instruction Manual.
NOTE: Use print function of MCR 340V where test results are required for warranty claims.
Battery test results
A battery is in good condition if the voltage measured by the tester during the battery test drops gradually and does not fall below a specified value. The rate of decrease varies and depends on the battery capacity and cold cranking amp rating ("cold cranking amps" is the rated ability of the battery to perform at low temperatures and with high loads i.e.: high compression engines).
A battery is either faulty or in a low state of charge if the voltage measured during the battery test drops quickly and falls below the specified voltage.
After performing the battery test, a faulty battery will remain below the specified voltage and may only recover very slowly over a long period of time. The no load voltage is never reached. Testing and Inspection
Such batteries no longer have sufficient reserve and load capacity and must be replaced.