Battery Test

An objective statement on charged condition of a battery is only possible via a load test with cold testing current. This test can be carried out with a battery tester.

Acid density of a battery can also be used to determine charged condition. This check gives rise to uncertainty due to the design-related range of acid density, e.g. for charged battery: Acid density = 1.28 kg/l (tropic version : acid density = 1.23 kg/l).

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

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