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Which battery does my Audi A1 need?
The Audi A1 (8X) usually requires an EFB or AGM battery. For 1.0 TFSI/1.4 TDI with start-stop we recommend the electronicx EFB60 (60 Ah, 520 A CCA). For high trim levels with numerous comfort consumers or frequent short journeys, the more powerful AGM70 (70 Ah, 760 A CCA) is the better choice. Polarity: positive terminal on the right. Ensure the identical design H4/LN1.
Which battery fits the Audi A3?
For the Audi A3 (8V), the AGM70 (70 Ah, 760 A CCA) is the standard for start-stop models and is also listed by electronicx under the part number ELX-AGM70. 1.0 TFSI models without start-stop can be operated with an EFB variant such as the EFB68 (68 Ah, 600 A CCA) . Dimensions: 278 x 175 x 190 mm. Polarity: positive terminal on the right. Please ensure the correct BEM code.
Which battery does the Audi A4 need?
Audi A4 B9 (from 2015) generally requires an AGM battery. We supply the electronicx AGM80 (80 Ah, 800 A CCA) – perfectly matched to the energy management. For the smaller 2.0 TDI without major optional equipment, the AGM70 (70 Ah, 760 A CCA) may also be sufficient. Position: usually in the boot on the right. Please teach in the battery after installation (gateway control unit).
Which battery is right for the Audi A5?
The Audi A5 (F5) uses the same platform as the A4 B9. We therefore recommend the electronicx AGM80 (80 Ah, 800 A CCA). For older A5 (8T) with start-stop system, the AGM70 (70 Ah, 760 A CCA) is the proven choice. In the coupé/cabriolet the battery is often located in the boot. Ensure the exact polarity (usually positive on the right) and have the battery registered in the electrical system.
Which battery is recommended for the Audi A6?
For the large Audi A6 (C7 / C8) we rely on electronicx AGM105 (105 Ah, 950 A CCA). This high-performance AGM reliably supplies even extensive mild-hybrid systems and numerous assistance systems. For C6 vehicles without start-stop, a cheaper AGM80 (80 Ah, 800 A CCA) may suffice. Battery location: depending on model under the spare wheel well or in the engine compartment (C6). Registration is mandatory.
Which battery for the Audi A7?
The A7 (4K) is technically based on the A6 and requires an equally powerful battery. Our recommendation: electronicx AGM105 (105 Ah, 950 A CCA). For equipment with air suspension and mild-hybrid, this capacity is essential. Older A7 (4G) manage with the AGM80 (80 Ah, 800 A CCA) . The installation location is in the boot on the left. Have the new battery programmed with a diagnostic tester.
Which battery for the Audi A8?
The Audi A8 (D5) uses a highly advanced 48‑V electrical system. The associated 12‑V AGM battery is located in the boot. electronicx offers the AGM105 (105 Ah, 950 A CCA) with reinforced polarity (positive terminal on the right). Note: after replacement, the battery must be taught in to the energy management control unit. Use our installation service or a suitable diagnostic interface (e.g. VCDS).
Which battery for the Audi Q2?
The Audi Q2 (GA) is closely related to the A3. For all Q2 with start‑stop system we supply the electronicx AGM70 (70 Ah, 760 A CCA). Vehicles without start‑stop can be fitted with the cheaper EFB60 (60 Ah, 520 A) . Dimensions (L x W x H): 278 x 175 x 190. Installation location: engine compartment front (positive terminal on the right). We recommend adapting the battery type in the electrical system control unit despite the same size.
Which battery for the Audi Q3?
Audi Q3 (F3) requires an AGM battery with at least 70 Ah. electronicx recommends the AGM70 (70 Ah, 760 A CCA). For optional equipment such as tow bar, electric tailgate or sound system, the larger AGM80 (80 Ah, 800 A CCA) is the more robust choice. Battery is located in the engine compartment. Polarity: positive terminal on the right. After replacement, the new battery must be registered in the gateway via diagnostic device.
Which battery for the Audi Q5?
Most Audi Q5 (FY / 8R) require an electronicx AGM80 (80 Ah, 800 A CCA). For older Q5 8R with start‑stop, the AGM70 (70 Ah, 760 A CCA) sufficient. Location: boot under the load floor or at the side (FY). Important: use only AGM batteries – EFB types are not specified for this vehicle type. Battery registration can be carried out with commercially available diagnostic testers.
Which battery for the Audi Q7?
The Audi Q7 (4M) is a major electrical consumer and needs maximum reserves. electronicx supplies the AGM105 (105 Ah, 950 A CCA). In versions with an additional battery (dual battery system), this is used in the boot (main battery under the driver's seat). Pay attention to the correct type and, if in doubt, ask our customer service. Registration in the vehicle electrical system is absolutely essential.
Which battery for the Audi Q8?
The Q8 shares its platform with the Q7 and likewise needs a powerful AGM. We rely on the electronicx AGM105 (105 Ah, 950 A CCA). The battery is located either under the driver's seat or in the boot. Due to the high quiescent current draw (many control units), only an AGM with BEM support may be used. After replacement, coding in the diagnostic protocol is mandatory.
What do AGM and EFB mean for Audi batteries?
AGM (Absorbent Glass Mat) and EFB (Enhanced Flooded Battery) are lead-acid batteries developed specifically for start-stop vehicles. AGM is more powerful: higher cold cranking currents, extreme cycle resistance and completely leak-proof – specified for Audi models with pronounced recuperation. EFB is the more cost-effective entry-level solution for small start-stop systems (e.g. A1 1.0 TFSI). electronicx stocks both types with BEM codes precisely matched to the Audi models.
How important are Ah and CCA for the Audi battery?
The ampere-hours (Ah) indicate the capacity – crucial for supplying auxiliary heaters, audio systems and the ability to start after a longer standing period. The CCA value (Cold Cranking Amps) quantifies the cold starting performance at low temperatures. For Audi engines with large diesel or petrol direct injection units, CCA values of at least 760 A are necessary; in the A6/A8/Q7/Q8 often over 900 A. electronicx always states both values precisely and will gladly advise you on the right choice.
Replacement & installation Audi
Do I need to teach in or program the battery in the Audi?
Yes, on almost all Audi models from model year 2008 onwards, the new battery must be registered in the vehicle electrical system control unit (gateway). The energy management stores the battery type (AGM/EFB), capacity and manufacturer code. Without adaptation, the alternator charges with incorrect parameters, which drastically shortens the service life. electronicx supplies all necessary BEM codes and supports you with installation instructions – or you can use our professional installation service.
How is the battery correctly registered on an Audi?
Registration is carried out via the OBD diagnostic interface with a suitable tester (e.g. VCDS, ODIS, Launch). In the gateway control unit, the battery replacement is acknowledged and the type (AGM/EFB), the rated capacity and the serial number of the new electronicx battery are stored. For mild hybrid systems (A6/A7/A8/Q8), a reset of the hybrid energy management is additionally recommended. electronicx offers this registration for many models directly during installation.
Where is the battery located in the Audi A4 / A5?
On the Audi A4 B8/B9 and A5 F5/8T, the vehicle battery is usually located in the boot. Open the load floor flap – the battery sits on the right in a compartment behind the trim. Some A5 Coupé/Cabriolet versions have the battery in the engine compartment. First remove the negative cable, then the positive cable. electronicx supplies precise installation instructions including torque figures (5 Nm for terminal clamps).
Where do I find the battery in the Audi Q7 / Q8?
In the Q7 (4M) and Q8, the starter battery is installed under the driver's seat. To access it, the seat must be moved to the highest position and the cover removed. On models with an additional battery (usually 105 Ah AGM), this is located in the boot behind the left service flap. The electronic connection (battery isolation relay) makes replacement demanding. electronicx recommends having the replacement carried out by a specialist workshop or booking our installation service.
Do I need special tools for changing the battery on an Audi?
In most cases, a 10 mm open-end spanner, a Torx set (T25/T30) and a plastic trim removal tool are sufficient. Take care not to twist the terminal clamps. For batteries in the boot (A4/A6), a 13 mm spanner is sometimes required. For Q models with seat-mounted installations, additional socket wrenches are required. electronicx includes a free terminal clamp adapter with every Audi battery and provides information on the tools required in the product data sheet.
Purchase
How do I identify the right replacement battery for my Audi model?
Use our online battery finder at electronicx.de: simply enter the vehicle registration document data (KBA number) or the exact model designation. The system immediately shows the matching battery with Ah, CCA, terminal layout and dimensions. Alternatively, call us – we identify the correct electronicx battery using the VIN. All batteries are pre-programmed at the factory with the required BEM code, so that registration runs smoothly.
Delivery and shipping costs – how quickly does the battery arrive?
We ship Audi batteries within Germany free of charge by DHL (hazardous goods compliant). Orders placed by 14:00 leave our warehouse in Cleebronn the same day. Delivery usually takes 1–2 working days. Every battery is packed shatter-proof and insured against transport damage. Shipping batteries abroad is possible – please ask our team for the costs.
What happens to my old Audi battery? Disposal?
We take back old batteries of the type we stock as new batteries free of charge: after a brief arrangement with us in Cleebronn. Starter batteries must not be sent to us by post as hazardous goods. Old batteries do not belong in household waste – you can also hand them in at recycling centres, workshops and retailers.
Do I lose any claims on the vehicle if I change the battery myself?
No, a proper battery replacement carried out by yourself does not jeopardise your claims against Audi or the used car dealer – provided the new battery meets the manufacturer's specifications and is registered correctly. electronicx batteries meet all specifications and are provided with a BEM code. Keep the purchase invoice and the installation receipt. In the event of a complaint, we recommend documenting the faultless battery registration with a diagnostic screenshot.
Can I install an AGM instead of an EFB battery in my Audi?
Yes, upgrading from EFB to AGM is possible on many Audi models and is even recommended. The AGM battery offers higher cycle stability and better cold-start values. Important: after installation, the changed battery technology must be programmed in the gateway. electronicx supplies the AGM70 (70 Ah, 760 A) as the perfect upgrade for EFB-equipped A1/A3/Q2. If you are unsure, our technical support will help you check compatibility.