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The changing role of the AGM battery

By autotech-nath on March 31, 2024

Varta reminds us that as well as Start-Stop and traditional combustion-powered vehicles, nearly all part- or fully electrified vehicles need a 12-volt power supply.

The increasing electrification of vehicles has intensified low- voltage power demands and redefines the role of the 12V battery and has become a safety critical component, particularly if the high voltage fails. Comfort and critical safety features on the internal electrical 12V power system are powered by the 12V battery, working as a secondary power source for the electrical system and ensures functionality whilst parked and the high-voltage battery is disconnected from the drivetrain. Lane assist, power steering and brake booster, and the car’s monitoring systems, are managed by onboard smart systems, drawing power from the 12V system.

“It is safe to say that the unique benefits of lead-acid technology will be important to meet growing consumer expectations for safety, comfort, and connectivity,” says Dr Christian Rosenkranz, VP of Industry and Governmental Relations at Clarios, parent company of the VARTA brand.

Over 60% of new vehicles in Europe are factory fitted with a VARTA battery, including popular marques such as Mercedes, Volkswagen and BMW. Workshops can access battery e-learning on the Varta Partner Portal, complementing its face-to-face training, as well as a Battery Finder, fitting instructions and free access to digital learning modules.



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