Safety instructions for filled and sealed lead-acid batteries

These safety instructions are to be observed when handling the battery. When working on the battery, start by reading the vehicle's operating manual and follow the guidelines it sets out.

First Aid

If acid comes in contact with the eyes, rinse for several minutes with clear water before seeking immediate medical attention. If acid is swallowed, consult a doctor immediately. Should acid get on the skin or clothing, neutralise straight away using soapsuds or an acid neutraliser and then rinse thoroughly with water.

Removal from and installation in the vehicle

  • Please note that interruptions to the power supply may cause electrical devices (eg. immobiliser, radio) to malfunction
  • Only install batteries that have been sufficiently charged, i.e. with a minimum terminal voltage of 12.5V
  • Switch off engine and all electrical devices before removing battery
  • When removing the battery, disconnect the negative terminal (-) before positive terminal (+)
  • Clean the installtion area in the vehicle before fitting the new battery
  • Clean the battery terminals and terminal connectors and treat the terminals with acid-free grease
  • Use the original attachment parts. Firmly secure the battery
  • Wait until you are connecting the battery within the vehicle before removing the protective caps. Attach these to the terminals of the battery being replaced to prevent short circuits and sparks
  • When installing the new battery, connect the positive terminal (+) before the negative terminal (-). Ensure the terminal connectors are securely in place
  • Take parts such as terminal covers, the elbow, the hose connector and terminal clamp holder from the previous battery and connect as before. Use any available or supplied filler caps
  • Leave at least one gas outlet open to avoid the risk of explosion. This also applies to the transport of used batteries

External Charging

  • Only use suitable direct current chargers and observe their operating instructions
  • Never charge frozen batteries or those with a temperature above 45 degrees celcius
  • Connect the positive terminal (+) to the positive terminal of the charger, and the negative terminal (-) to the negative terminal of the charger
  • Only switch on the charger once the battery has been connected
  • Only switch off the charger once the battery has finished charging
  • Stop charging if the battery becomes hot or if acid leaks out!
  • Ensure charging takes place in a well-ventiated area


  • Keep the surface of the battery clean and dry, and only clean with a damp or anti-static cloth
  • Protect the terminal and connectors from corrosion, and treat with acid-free grease
  • Do not open batteries where the caps are totally sealed!
  • If cold start performance is insufficient, check the battery and, if necessary, recharge
  • Stored batteries should be kept charged and cool at all times
  • Check the state of charge on a regular basis or use a trickle charger
  • Recharge if the terminal voltage is below 12.3V


  • Read the vehicle's operating manual and follow its instructions on jump-starting
  • Jump-starting can only be performed using a battery with the same nominal voltage. Both batteries should be roughly the same size
  • Only use approved jumper cables (e.g. in accordance with ISO 6722)
  • Observer the jumper cable's operating instructions