# Start-Stop battery Varta A4 12V 105Ah 950A AGM

![Start-Stop battery Varta A4 12V 105Ah 950A AGM](https://baterias.com/4374-home_default/battery-varta-a4-agm-12v-105ah-950a.jpg)

> Varta A4 105Ah 950A: AGM Start-Stop car battery, 394 × 175 × 190 mm, positive on the right. Ships in 24h, delivery in 3–5 working days; check by number plate.

**Category:** [Car batteries equipped with start stop system](https://baterias.com/gb/car-batteries-equipped-with-start-stop-system) → [VARTA](https://baterias.com/gb/varta)

- **Canonical URL**: https://baterias.com/gb/battery-varta-a4-agm-12v-105ah-950a
- **Language**: en-GB
- **Brand**: VARTA
- **Reference**: BCOM-VARTA-A4
- **EAN**: 4016987167267
- **MPN**: A4
- **Price**: 189,30 €
- **Stock**: In stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | VARTA |
| Reference | A4 |
| Model | Dynamic AGM (antes Silver Dynamic AGM) |
| Voltage (V) | 12 V |
| Largo | 393 mm |
| Ancho | 175 mm |
| Alto | 190 mm |
| Peso | 29.4 kg |
| Tecnología | AGM |
| EAN | 4016987167267 |
| Terminal layout | Positive terminal on the right |
| Terminal type | 1 |
| Hold down | B13 |
| Cold cranking amps (EN) | 950 A |
| Capacity (C20) | 105 Ah (c20) |
| ETN | 605901095D852 |

## Quick description

**Varta A4 12V 105Ah 950A**: AGM Start-Stop car battery from the Dynamic AGM range. Start-Stop cars that originally had a 394 × 175 × 190 mm AGM battery.
🔌 Voltage
12 V

⚡ Capacity
105 Ah C20

🔋 Cold cranking
950 A EN-1

📏 Dimensions
394×175×190 mm

⚙️ Technology
AGM

🧭 Polarity
Positive on the right

⚖️ Weight
28,53 kg

🏷️ Model
Dynamic AGM

## Description

## Varta A4: car battery 12V 105Ah 950A AGM Start-Stop

The Varta A4 is a 12 V, 105 Ah, 950 A AGM car battery from the Dynamic AGM range, built for Start-Stop cars with heavy electrical loads (regenerative braking, cameras, climate control at idle). 394 × 175 × 190 mm case, positive terminal on the right. It works in a car without Start-Stop, but is not needed there: a conventional battery will do.

### Vehicles compatible with the Varta A4

According to our database, the Varta A4 is compatible with more than 140 vehicles. Car makes that use it include BMW, Audi, Alpina, Iveco, Citroën and Porsche: it is a go-to option when you need a **battery for BMW**, Audi or other models with this same format. It also appears as a replacement in models from Nissan, Mercedes-Benz, Opel, Fiat, Peugeot, Bentley, Vauxhall and Volkswagen, among other manufacturers. It covers more than 50 original-equipment references. Not sure whether it is the right one for your car? Check in seconds by entering your **registration** in our finder.

### Format and fitting of the Varta A4

The Varta A4 measures 394 × 175 × 190 mm (length × width × height) and weighs 28.53 kg. The positive terminal on the right determines which side the cables end up on: it is the detail that causes the most buying mistakes, so it is worth checking before you order. It has a B13 hold-down, the system that anchors it to the vehicle's battery tray, and standard conical terminals (type 1). Before replacing it, measure the space your current battery occupies: if it matches on all three dimensions and on terminal position, the swap is direct and needs no adapters.

### The Varta A4 and the Dynamic AGM range

The **Dynamic AGM** range (gold label) is Varta's top of the range for cars: AGM technology, with the electrolyte absorbed in glass fibre, designed for the most advanced Start-Stop systems and for braking energy recovery.
It withstands thousands of charge and discharge cycles without losing performance and is the only correct choice when the car came with AGM from new. Ideal for vehicles with high electrical consumption and very frequent starts. *This battery used to belong to Varta's **Silver Dynamic AGM** range; following the brand's change of commercial naming (2025), it now forms part of the new **Dynamic AGM** series.*

### Buying the Varta A4 at baterias.com

We are an official Varta distributor: the A4 arrives new and freshly manufactured. If this page shows it as “eligible for urgent delivery”, order before 18:00 (mainland Spain time) and you will receive it the next working day before 17:00 in mainland Spain and Portugal; all other delivery times are in our [delivery terms](https://baterias.com/gb/shipping-delivery). You can also browse all [Varta batteries](https://baterias.com/gb/batteries-varta) or the rest of our [car batteries](https://baterias.com/gb/car-batteries).

## Frequently asked questions

### Is the Varta A4 an AGM battery and what are the benefits of AGM?

Yes. The A4 from Varta uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for cars with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.

### Is the Varta A4 battery suitable for Start-Stop?

Yes. As AGM technology it is designed for Start-Stop vehicles. AGM batteries support advanced Start-Stop and regenerative braking thanks to their higher cycle count. EFB is recommended for basic Start-Stop; AGM is recommended when regenerative braking is also present, thanks to its higher cycle capability. It works straight out of the box — on most modern vehicles registering the battery via OBD is recommended so the alternator automatically applies the optimal charging profile.

### How do I fit the A4 model in my car?

In most cars it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on our blog. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — with positive on the right match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On cars with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.

### How long does the Varta A4 battery last?

Expected lifespan of the Varta A4 is 5 to 8 years in mild-climate car use with Start-Stop. In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.

### What are the measurements of the A4 model?

Dimensions (length × width × height) are 394×175×190 mm — also written as 394x175x190 mm and correspond to the European L6 case size — following the European DIN standard. Always measure the space in your car before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.

### What polarity does the Varta A4 battery have?

Polarity: positive on the right. To identify it, place the battery in front of you with the terminals facing you and check which side the positive (+, marked with a red ring) is on. Before buying, verify the polarity matches your current battery: switching polarity forces longer cables or system reconfiguration, with short-circuit risk.

### Will the Varta A4 battery fit my car?

Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The A4 fits 149 verified vehicle versions in our database.

### What are the equivalents of the A4 model?

Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop cars. See the "Equivalents" section to view recommended options at the same performance level.

### Why choose AGM instead of EFB for my Start-Stop car?

AGM (Absorbent Glass Mat) technology uses absorbent fibreglass that retains the electrolyte, eliminating leaks and allowing up to 3× more charge/discharge cycles than a conventional battery. It is the recommended option when the car has advanced Start-Stop with regenerative braking (BMW EfficientDynamics, Mercedes Eco, Audi MHEV, Land Rover ECO, Volvo i-Stop). Withstands tilted positions, high vibration and extreme temperatures better than EFB. The Varta A4 is fully original and meets European EN 50342-6 standards for advanced Start-Stop.

### Do I need to register the Varta A4 on the car after installation?

On most cars it is not strictly necessary — the alternator detects the new battery and adapts the charge automatically. It is recommended to register the battery via OBD so that the alternator applies the optimal charging profile from the first minute and extends the battery life as much as possible (especially on brands with sophisticated BMS: BMW, Mercedes, Audi, Volvo, Land Rover). Any workshop with an OBD scanner (~10-15 € labour) does it in 5 minutes. DIY apps: VCDS / Carista (VAG), Bimmercode (BMW), iCarsoft. If you do not register, the car will still start correctly — the alternator just takes a few days to adjust the profile. The Varta A4 ships factory-charged at 80-90% so you can use it straight after fitting.


## Compatible vehicles

This battery fits 149 vehicles. Most searched:

- [BMW 5 (G30, F90) (2016)](https://baterias.com/gb/car-batteries/bmw/5-g30-f90)
- [BMW 5 Touring (F11) (2009)](https://baterias.com/gb/car-batteries/bmw/5-touring-f11)
- [BMW 5 (F10) (2009)](https://baterias.com/gb/car-batteries/bmw/5-f10)
- [CITROËN JUMPER II Van (2006)](https://baterias.com/gb/car-batteries/citroen/jumper-ii-van)
- [CITROËN JUMPER II Platform/Chassis (2006)](https://baterias.com/gb/car-batteries/citroen/jumper-ii-platformchassis)
- [MERCEDES-BENZ S-CLASS (W222, V222, X222) (2013)](https://baterias.com/gb/car-batteries/mercedes-benz/s-class-w222-v222-x222)
- [CITROËN JUMPER II Bus (2006)](https://baterias.com/gb/car-batteries/citroen/jumper-ii-bus)
- [FIAT DUCATO Van (250\_) (2006)](https://baterias.com/gb/car-batteries/fiat/ducato-van-250)
- [AUDI A6 C6 (4F2) (2004)](https://baterias.com/gb/car-batteries/audi/a6-c6-4f2)
- [FIAT DUCATO Bus (250\_) (2006)](https://baterias.com/gb/car-batteries/fiat/ducato-bus-250)
- [PEUGEOT BOXER Van (2006)](https://baterias.com/gb/car-batteries/peugeot/boxer-van)
- [AUDI A4 B8 Avant (8K5) (2007)](https://baterias.com/gb/car-batteries/audi/a4-b8-avant-8k5)

## Equivalent batteries

- [TUDOR TK1060](https://baterias.com/gb/battery-tudor-tk1060-12v-106ah-950a)
- [EXIDE EK1060](https://baterias.com/gb/battery-exide-ek1060-12v-106ah-950a)
- [VARTA LA105](https://baterias.com/gb/battery-varta-la105agm-12v-105ah-950a)

## Reviews

- **Average rating**: 4.88 / 5 (8 reviews)

## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2012.

→ https://baterias.com/gb/technical-team

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*baterias.com — Automotive batteries · 2026-10-24*