# Car battery Varta B20 12V 45Ah 400A

![Car battery Varta B20 12V 45Ah 400A](https://baterias.com/3981-home_default/battery-varta-b20-12v-45ah-400a.jpg)

> Varta B20 car battery 12V 45Ah 400A. Original, 2-year manufacturer warranty, 24 h delivery. Check compatibility by plate.

**Category:** [Car Batteries](https://baterias.com/gb/car-batteries) → [VARTA](https://baterias.com/gb/varta)

- **Canonical URL**: https://baterias.com/gb/battery-varta-b20-12v-45ah-400a
- **Language**: en-GB
- **Brand**: VARTA
- **Reference**: BCOM-VARTA-B20
- **EAN**: 4016987167755
- **MPN**: B20
- **Price**: 50,10 €
- **Stock**: In stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | VARTA |
| Reference | B20 |
| Model | Dynamic SLI (antes Black Dynamic) |
| Voltaje | 12 V |
| Largo | 207 mm |
| Ancho | 175 mm |
| Alto | 190 mm |
| Peso | 11.7 kg |
| Tecnología | PLOMO/ACIDO |
| EAN | 4016987167755 |
| Scheme | 1 |
| Terminal | 1 |
| Subjection | B13 |
| Arranque en frío CCA EN | 400 A |
| Capacidad C20 (Ah) | 45 Ah (c20) |
| ETN | 5454130403122 |

## Quick description

**Varta B20 12V 45Ah 400A** is a ready-to-use passenger car battery, sealed and maintenance-free. Delivers the cranking amps the engine needs in cold weather and keeps stable voltage for modern car loads (ECU, sensors, climate control, infotainment).

### Why this car battery??

- **Original-equipment quality** without dealership prices
- **Lasts 4 to 6 years** buy once instead of twice
- **Real human tech support** if you have any doubts before buying

🔌 Voltage i
12 V

⚡ Capacity i
45 Ah C20

🔋 Cold cranking i
400 A EN-1

📏 Dimensions i
207×175×190 mm

⚙️ Technology i
Lead-Acid

🧭 Polarity i
Positive On The Left

⚖️ Weight i
12 kg

🏷️ Model i
Dynamic SLI

## Description

[ ](https://www.varta-automotive.es/es-es)
[ ](https://www.varta-automotive.es/es-es) [ ](https://www.varta-automotive.es/es-es)

## Battery Varta B20 Dynamic SLI (antes Black Dynamic) 45Ah 400A 12V

If you are looking for a battery for your first car that offers a good value for money, VARTA® Black Dynamic batteries are the perfect solution to meet the energy demands of vehicles and keep them on the road for many years. Choose VARTA® Black Dynamic, the brand synonymous with cutting-edge technology, innovation and trust.
- Designed to the highest German standards.
- Patented PowerFrame® grid for maximum starting power, quick recharge and increased corrosion resistance.
- Meets OE equivalent replacement part requirements.

## Why choose a **Varta B20** battery?

Today, the battery has become one of the most important elements of any vehicle. Both the safety systems and the auxiliary elements that equip the vehicles, depend to a great extent on the quality of the battery for its correct operation.
There are countless brands of batteries on the market and it is normal for a non-expert user to have doubts about which battery to choose.
For that reason, we list some of the reasons why we believe that choosing the right Varta Battery is always a wise choice:
- **Leading Brand**: The Varta brand, with over 125 years of history, is the world's leading manufacturer of automotive batteries. Your Varta B20 battery is manufactured by the number one manufacturer in the industry.

- **Quality**: During the manufacturing process of the Varta B20 battery, more than 100 parameters are monitored to guarantee the complete quality and reliability of the product.

- **Reliability**: The main vehicle manufacturers on the market: Mercedes, BMW, Audi... rely on Varta batteries to equip their new vehicles. Working for these manufacturers means exceeding their strict quality controls and expectations for reliability.
**Don't play it. Installing a good battery for your vehicle is a matter of safety and reliability**.

If you want additional information about Battery Varta B20, you can download the product's technical sheet at the following link:
[

Download technical sheet Varta B20 45Ah 400A 12V](/fichastecnicas/data-sheet-battery-varta-b20-45ah-400a-12v-en.pdf)

## Frequently asked questions

### How do I check that the Varta B20 battery fits my vehicle?

Three ways: 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 for the B20; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 9:00–18:00 CET).

### How do I change this battery step by step?

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 this page. 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 — 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.

### What warranty does the Varta B20 battery have?

We provide 2 years of official manufacturer warranty against manufacturing defects. Coverage includes cell breakdowns, internal short-circuits and abnormal capacity decreases. Damage from misuse is excluded: prolonged overcharging, unsuitable chargers or a faulty alternator. If the battery fails, we replace it at no cost after a technical inspection.

### When will I receive the B20 model?

In mainland Spain and Portugal it arrives in 24 h if you order before 17:00 and the battery is in stock — it leaves the same day and arrives the next business day. Afternoon or weekend orders ship the next business day. For Balearics, Canaries and other EU destinations, allow 2-5 days. Shipping cost is calculated in the cart based on destination and service (standard, express, cash on delivery). Tracking number is sent by email + SMS as soon as the parcel ships.

### Can I return the Varta B20 battery if it doesn't fit or doesn't work?

Yes. You have 14 days from delivery to return it. In mainland Spain and Portugal returns are FREE — we cover the return shipping cost via prepaid label. In other EU countries the return shipping cost is the customer's. It must arrive in its original packaging with no signs of installation. If it was defective, the warranty covers replacement even after the 14-day period.

### How much does the Varta B20 battery cost?

The current price at baterias.com is 41,41 € (VAT not included), updated every 24 hours. The applicable VAT is calculated in the cart and depends on the destination country of the shipment. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery).

### Where do I find the B20 model online?

At baterias.com — authorised distributor with real stock, 24h delivery in mainland Spain and Portugal if you order before 17:00, and full manufacturer warranty. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery). Secure payment by card, Bizum, PayPal or bank transfer. If you choose at-home installation, our technician will take the used battery and dispose of it through an authorised collection point.

### How long does the Varta B20 battery last?

Expected lifespan of the Varta B20 is 3 to 5 years in regular car use without 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 dimensions of the Varta B20 battery?

Dimensions (length × width × height) are 207×175×190 mm — also written as 207x175x190 mm and correspond to the European L1 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.

### How much does the Varta B20 battery weigh?

It weighs 11,7 kg. Most of the weight is lead. If you plan to fit it yourself, use gloves and a carrying strap (AGM batteries are slightly heavier than conventional due to the absorbent glass-mat fibre).

### How many Ah and CCA does this battery have?

Nominal capacity 45 Ah[?cca: and [cold-cranking amps 400 A]] at 12 V. Ah measure the total energy available (autonomy); CCA (also written A in cold or EN under the European standard) measure the instantaneous power to crank the starter motor. A battery with more CCA starts better in winter; one with more Ah keeps accessories on for longer.

### What ETN and EAN codes does the Varta B20 battery have?

The manufacturer reference (MPN) is B20 and its ETN code is 5454130403122 (short form 545 413 040), the European identifier used in spare-part catalogues. The EAN-13 barcode is 4016987167755. It belongs to the VARTA BLACK dynamic range. Any of these codes identifies exactly this battery when requesting quotes or comparing prices.

### Will the Varta B20 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 9:00–18:00 CET). The B20 fits 58 verified vehicle versions in our database.

### Which batteries are equivalent to the Varta B20?

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.

### Is the B20 model better than its equivalents from other brands?

This battery and its equivalents from Bosch, Tudor or Exide are technically comparable: same dimensions, same voltage and same capacity. The differences are warranty (Varta and Bosch: 2 years; Tudor and Exide: 2 years on the equivalent line), manufacturing plant (Varta and Bosch share origin in the Clarios Group; Tudor and Exide belong to Stryten Energy) and price. For private use any of these brands will give 4-6 years of life. Compare them in the "Equivalents" section.

### What do users say about the Varta B20 battery?

The average rating of the Varta B20 on baterias.com is 4.8/5 from 26 verified customer reviews. The product rating, when available, is shown above and in the "Reviews" section. You can also check our public Trustpilot profile at shop level (4.4/5 from 10,540+ verified reviews). Most-praised points: reliable cold start, lifespan above 5 years and fast delivery; most common complaints mention BMS-equipped cars that need OBD registration after fitting.


## Compatible vehicles

This battery fits 58 vehicles. Most searched:

- [LANCIA DELTA I (831\_) (1990)](https://baterias.com/gb/car-batteries/lancia/delta-i-831)
- [CHEVROLET BERETTA Coupe (1\_37) (1990)](https://baterias.com/gb/car-batteries/chevrolet/beretta-coupe-1_37)
- [DAEWOO KALOS (KLAS) (2002)](https://baterias.com/gb/car-batteries/daewoo/kalos-klas)
- [CHEVROLET KALOS Saloon (2005)](https://baterias.com/gb/car-batteries/chevrolet/kalos-saloon)
- [FIAT 126 (126\_) (1990)](https://baterias.com/gb/car-batteries/fiat/126-126)
- [SEAT MARBELLA (28A) (1990)](https://baterias.com/gb/car-batteries/seat/marbella-28a)
- [FIAT PANDA (141\_) (1990)](https://baterias.com/gb/car-batteries/fiat/panda-141)
- [FIAT 127 (127\_) (1990)](https://baterias.com/gb/car-batteries/fiat/127-127)
- [ZASTAVA SKALA (1990)](https://baterias.com/gb/car-batteries/zastava/skala)
- [HYUNDAI IONIQ (AE) (2016)](https://baterias.com/gb/car-batteries/hyundai/ioniq-ae)
- [FSO POLONEZ III (1992)](https://baterias.com/gb/car-batteries/fso/polonez-iii)
- [ARO 10 (1990)](https://baterias.com/gb/car-batteries/aro/10)
- [KIA NIRO I (DE) (2016)](https://baterias.com/gb/car-batteries/kia/niro-i-de)
- [SEAT MARBELLA Hatchback Van (028A) (1990)](https://baterias.com/gb/car-batteries/seat/marbella-hatchback-van-028a)
- [TOFAS SAHIN Saloon (1990)](https://baterias.com/gb/car-batteries/tofas/sahin-saloon)

## Reviews

- **Average rating**: 4.6 / 5 (16 reviews)

## Technical team (editorial authorship)

The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries.

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

---
*baterias.com — Automotive batteries · 2026-07-06*