# Car battery Varta B23 12V 45Ah 300A

![Car battery Varta B23 12V 45Ah 300A](https://baterias.com/3985-home_default/battery-varta-b23-12v-45ah-300a.jpg)

> Varta B23 car battery 12V 45Ah 300A. Official Varta Distributor. Dynamic SLI range. Dimensions 220×135×225 mm, + terminal on the right. Check fitment 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-b23-12v-45ah-300a
- **Language**: en-GB
- **Brand**: VARTA
- **Reference**: BCOM-VARTA-B23
- **EAN**: 4016987167724
- **MPN**: B23
- **Price**: 81,40 €
- **Stock**: In stock

## Technical specifications

| Feature | Value |
|---|---|
| Brand | VARTA |
| Reference | B23 |
| Model | Dynamic SLI (antes Blue Dynamic) |
| Voltage (V) | 12 V |
| Largo | 219 mm |
| Ancho | 135 mm |
| Alto | 225 mm |
| Peso | 10.8 kg |
| Tecnología | Lead-acid |
| EAN | 4016987167724 |
| Terminal layout | Positive terminal on the right |
| Terminal type | 1 |
| Hold down | B01 |
| Cold cranking amps (EN) | 300 A |
| Capacity (C20) | 45 Ah (c20) |
| ETN | 5450770303122 |

## Quick description

**Varta B23 12V 45Ah 300A** is a passenger car battery with factory-guaranteed cranking power and extended service life. OEM quality at white-label prices: calcium-silver grids, low self-discharge and compatible with all modern electrical systems.

### 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
12 V

⚡ Capacity
45 Ah C20

🔋 Cold cranking
300 A EN-1

📏 Dimensions
220×135×225 mm

⚙️ Technology
Lead-acid

🧭 Polarity
Positive on the right

⚖️ Weight
10,7 kg

🏷️ Model
Dynamic SLI

## Description

## Varta B23 Dynamic SLI (formerly Black Dynamic) 45Ah 300A 12V Car Battery

12*V* Voltage
45*Ah* Capacity
300*A* Cold cranking
10,8*kg* Weight

The **Varta B23 car battery** is the **12 V**, **45 Ah** model with **300 A** of cold cranking power (EN) from Varta's **Dynamic SLI (formerly Black Dynamic)** range, intended for cars with conventional starting, without a Start-Stop system. Its 219 × 135 × 225 mm dimensions and positive terminal on the right make it the exact replacement for the 45 Ah battery fitted as standard in many cars.
- Long service life with normal use and a charging system in good order.
- Maintenance-free lead-acid technology: no topping up with water.
- Direct replacement for the original battery in cars without Start-Stop.
- Reliable cold starting thanks to its high cranking current.

### Vehicles compatible with the Varta B23 battery

This battery is listed as compatible with more than 33 vehicles from manufacturers such as Piaggio, Marcos, Renault, Hyundai, Nissan and Rover. If you are after a **battery for a Piaggio** or Marcos in these dimensions, the B23 is one of the usual replacement references. It also appears as a replacement in vehicles from Mazda and Suzuki, among other manufacturers. It covers 20 original equipment references, one of the widest coverages in its format. Not sure whether it is the one for your car? Check in seconds by entering your **registration** in our finder.

### Format and fitting of the Varta B23

The Varta B23 is made in the 219 × 135 × 225 mm format and weighs 10,8 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 uses a B01 hold-down and terminal 1, the system that anchors it to the vehicle's battery tray. 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 B23 and the Dynamic SLI range

The **Dynamic SLI** is Varta's entry range for vehicles with traditional starting (without Start-Stop), bringing what used to be the Blue, Silver and Black Dynamic series together under a single name by technology. Its lead-calcium construction with optimised separators puts the emphasis on punchy starting and a long, maintenance-free life.
It covers the vast majority of conventional petrol and diesel cars on the European market. It is the sensible choice when you want German manufacturing quality without paying the premium for AGM or EFB technology the vehicle does not need.
This series uses lead-acid technology with plates optimised for a good balance between cranking power and service life. It is the natural successor when your car has no Start-Stop and came with a standard battery from new: the same thinking, without paying over the odds for a chemistry you do not need. *This battery used to belong to Varta's **Black Dynamic**, **Silver Dynamic** or **Black Dynamic** range; following the brand's commercial renaming (2025), it forms part of the new **Dynamic SLI** series.*

### Why choose a Varta battery

When a workshop recommends Varta it is not down to marketing: it is one of the brands with the lowest return rates in the sector, with an application coverage spanning practically the whole European fleet, from the city car to the commercial vehicle.
Varta combines more than a century of experience with Clarios's industrial production: it is the battery many manufacturers choose as standard and one of the most recommended by workshops. Like every lead-acid battery, it is 100% recyclable.
More than 100 manufacturing parameters are checked on every Varta battery before it leaves the plant, a level of rigour that explains why so many workshops and manufacturers trust the brand as their first-choice replacement.

### Manufacturer's warranty

The Varta B23 battery comes with the **official manufacturer warranty**.

### Care and maintenance

To get the most out of it, keep the alternator in good order and avoid leaving lights or accessories on with the engine switched off. Repeated very short journeys are its main enemy: they stop the battery from recharging fully and shorten its life. If the car is going to stand unused for weeks, it is worth disconnecting the terminal or using a trickle charger so it does not drop below the safe threshold. Making sure the terminals are clean and properly tightened also helps towards reliable starting.

### Technical sheet

Download the official technical sheet for this battery with all the manufacturer data.
[Download technical sheet (PDF)](/fichastecnicas/data-sheet-battery-varta-b23-45ah-300a-12v-en.pdf)

## Frequently asked questions

### How do I fit the B23 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 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 is the service life of the B23 model?

Expected lifespan of the Varta B23 is 4 to 6 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 B23 battery?

Dimensions (length × width × height) are 220×135×225 mm — also written as 220x135x225 mm — 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 ETN and EAN codes does the Varta B23 battery have?

The manufacturer reference (MPN) is B23 and its ETN code is 5450770303122 (short form 545 077 030), the European identifier used in spare-part catalogues. The EAN-13 barcode is 4016987167724. It belongs to the Varta Dynamic SLI range. Any of these codes identifies exactly this battery when requesting quotes or comparing prices.

### Will the Varta B23 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 B23 fits 105 verified vehicle versions in our database.

### Which batteries are equivalent to the Varta B23?

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.


## Compatible vehicles

This battery fits 105 vehicles. Most searched:

- [PIAGGIO PORTER Platform/Chassis (1992)](https://baterias.com/gb/car-batteries/piaggio/porter-platformchassis)
- [PIAGGIO PORTER Van (1992)](https://baterias.com/gb/car-batteries/piaggio/porter-van)
- [PIAGGIO PORTER Bus (1995)](https://baterias.com/gb/car-batteries/piaggio/porter-bus)
- [HYUNDAI ACCENT I (X-3) (1994)](https://baterias.com/gb/car-batteries/hyundai/accent-i-x-3)
- [RENAULT 18 Variable (135\_) (1990)](https://baterias.com/gb/car-batteries/renault/18-variable-135)
- [NISSAN CUBE (Z12) (2007)](https://baterias.com/gb/car-batteries/nissan/cube-z12)
- [HYUNDAI ACCENT Saloon (X-3) (1994)](https://baterias.com/gb/car-batteries/hyundai/accent-saloon-x-3)
- [RENAULT 18 (134\_) (1990)](https://baterias.com/gb/car-batteries/renault/18-134)
- [MARCOS MANTA RAY Convertible (1998)](https://baterias.com/gb/car-batteries/marcos/manta-ray-convertible)
- [MARCOS MANTA RAY (1997)](https://baterias.com/gb/car-batteries/marcos/manta-ray)
- [RENAULT 4 (112\_) (1990)](https://baterias.com/gb/car-batteries/renault/4-112)
- [ROVER MINI Hatchback (1990)](https://baterias.com/gb/car-batteries/rover/mini-hatchback)
- [MARCOS TSO Convertible (2004)](https://baterias.com/gb/car-batteries/marcos/tso-convertible)
- [MAZDA MX-5 I (NA) (1990)](https://baterias.com/gb/car-batteries/mazda/mx-5-i-na)

## Equivalent batteries

- [TUDOR TB450](https://baterias.com/gb/battery-tudor-tb450-45ah-330a)
- [EXIDE EB450](https://baterias.com/gb/battery-exide-eb450-12v-45ah-330a)

## Reviews

- **Average rating**: 4.68 / 5 (53 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 · 2026-09-30*