What brand is the original battery for the Audi A3?

1 Answers
MacLukas
07/30/25 10:35am
Audi A3's original battery is the Varta EFB battery. Below is relevant information about the Audi A3's original battery: 1. Varta provides Enhanced Flooded Battery (EFB), which offers superior stability and performance compared to standard lead-acid batteries. 2. To address the loss of water due to evaporation and decomposition during use, and to adjust the electrolyte density, the battery's sealing cap is designed to be movable for adding distilled water to adjust the electrolyte concentration. 3. Its special polyester fiber separator can adsorb more active material on the plates, creating uniform low pressure on the active material, reducing its loss and increasing service life.
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