Maintenance free batteries (Opel Vectra A)

Opel Vectra/Calibra cars are equipped with maintenance-free batteries. There is no need to add distilled water to such a battery, but it is necessary to follow certain operating rules.

The battery cover has ventilation holes. To prevent electrolyte from leaking through them, the battery should not be tilted more than 40°.

For charging, you can use regular chargers, as well as fast chargers. The charging current should be 3-5 A.

The battery charge level can be determined by a special indicator built into the battery (see fig.):

• A - green dot in the center of the indicator, the ball lies directly in front of the plastic rod: the battery is charged at least 65%;
• B - dark center, the ball lies to the side of the plastic rod: the charge is less than 65%;
• C - light or light yellow center, the ball is located to the side of the plastic rod, the electrolyte level has dropped below the rod: if there are difficulties with starting, replace the battery.

Shake the battery a little before charging. Only the battery whose indicator color remains dark after shaking can be charged. When charging the battery, shake it every hour so that the electrolyte mixes well.



Store the battery at temperatures from 0 to +27°C. In this range, the battery has the lowest self-discharge.

Periodically clean the battery terminals and lubricate its leads with a special product from Bosch.