Mike's Workshop Manuals: Service manuals for every vehicle
Home >> Mini >> 2012 >> Cooper Base, 2D Hatchback, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 2419 (General Electrical System - Repair (E88)) >> Safety And General Information >> 61 00... Battery >> Battery test

Battery test

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 135i, and 2010 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.

The battery acid density can be used to measure the charge state. However this test produces uncertainty caused by a design-related range of variation. The acid density e.g. for a charged battery is 1.28 kg/l (in the tropical version the acid density is 1.23 kg/l).

Another interference factor is the acid lamination immediately after filling with distilled water.

Battery wear with partially sulfated and/or heavily contaminated plates will also lead to incorrect acid density test results.

scientia non olet · About Mike's Workshop Manuals