Visual Indicator, 2-Color, Checking

Visual Indicator, 2-Color, Checking


Risk of injury. Follow all Warnings and Safety Precautions. Refer to => [ Battery Safety Precautions ] Battery Safety Precautions.


Do not check or charge batteries that have a visual indicator that is bright yellow. Jump starting must not be used!

There is a risk of explosion during testing, charging or jump starting.

These batteries must be replaced.

Visual indicator General Information

The general introduction of the 2-color display began as a running change in 2009. The color green for the state of charge was discontinued on the 2-color.

The visual indicator shows the battery acid level.

It is no longer possible to read the battery state of charge using the visual indicator. It is necessary to perform a battery test. Refer to => [ Battery Tester ] Battery Tester (VAS 6161) or => [ Midtronics Battery Tester ] Midtronics Battery Tester (MCR340V)

To obtain an accurate reading, gently tap the charge indicator with a screwdriver handle or rock vehicle slightly. By doing this, the air bubbles that occur normally during battery charging (even during vehicle operation) that adversely affect charge indicator reading will be displaced. Thereby, the color indicator of the visual indicator is more accurate.

• Air bubbles can especially form under visual indicator when a battery is charged, including when charged while driving. This will cause an incorrect color display.

• The display is valid for only that one battery cell in which the visual indicator is located. An exact assessment of battery condition should always be confirmed by performing battery charge test using => [ Battery Tester ] Battery Tester (VAS 6161) or => [ Midtronics Battery Tester ] Midtronics Battery Tester (MCR340V).

• The visual indicator may be located on different locations on the battery.

Two color displays are possible

• Black, the electrolyte level is OK

• Bright yellow, the electrolyte level is too low. The battery must be replaced.