LEMON Manuals: Even more car manuals for everyone
Home >> Porsche >> 2021 >> 718 Boxster S, Automatic DCT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 20 (27 Starter, Power Supply, Cruise Control 2.0L -- 982 - BOXSTER/CAYMAN) >> WM, 270601 - Checking The Battery >> Battery And Handling Instructions >> Battery Load Test

Battery Load Test

WARNING: This page is about a different variant/trim than selected.

Information 

Carrying out battery load test: 

  1. Switch off ignition and remove ignition key.
  2. Read and follow the information provided in the operating instructions for the battery tester.
  3. Connect the clamps of the test lines to the battery terminals as described in the operating instructions for the battery tester.

    Set the Load current according to the battery capacity (operating instructions for battery tester).

  4. Perform battery load test in accordance with the operating instructions.

    Compare the result of the battery load test with the specified minimum voltage (limit value).

    BATTERY LOAD TEST SPECIFICATION

    Battery capacity: 80 Ah
    Cold test current 380 A
    Load current 300 A
    Minimum voltage (limit value) 9.5 V
  5. If the minimum voltage is not reached, replace the battery.

    > 270655 REPLACING THE BATTERY 

Remarks on battery load test: 

The battery voltage drops during this test due to the high load on the battery.

If the battery is OK, the voltage value will fall only to the minimum voltage.

If the battery is faulty, the battery voltage will drop very quickly to below the specified minimum voltage.

After the test, the voltage value will remain low for a long time; the voltage increases again slowly.