# Car battery Tudor TK457 12V 45Ah 380A AGM

![Car battery Tudor TK457 12V 45Ah 380A AGM](https://baterias.com/4642-home_default/battery-tudor-tk457-12v-45ah.jpg)

> Tudor TK457 car battery 12V 45Ah 380A AGM. Dimensions 237×127×227 mm, + terminal on the left. Check fitment by plate.

**Category:** [AUXILIAR](https://baterias.com/gb/auxiliar) → [TUDOR](https://baterias.com/gb/tudor)

- **Canonical URL**: https://baterias.com/gb/battery-tudor-tk457-12v-45ah
- **Language**: en-GB
- **Brand**: TUDOR
- **Reference**: BCOM-TUDOR-TK457
- **EAN**: 3661024057745
- **MPN**: TK457
- **Price**: 211,74 €
- **Stock**: Out of stock

## Technical specifications

| Feature | Value |
|---|---|
| Largo | 237 mm |
| Ancho | 127 mm |
| Alto | 227 mm |
| Peso | 13.5 kg |
| Tecnología | AGM |
| EAN | 3661024057745 |
| Scheme | Positivo Izquierda |
| Terminal | JIS taper post |
| Subjection | B00 |
| Arranque en frío CCA EN | 380 A |
| Capacidad C20 (Ah) | 45 Ah (c20) |

## Quick description

**Tudor TK457 12V 45Ah 380A** 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
12 V

⚡ Capacity
45 Ah C20

🔋 Cold cranking
380 A EN-1

📏 Dimensions
237×127×227 mm

⚙️ Technology
AGM

🧭 Polarity
Positivo a la izquierda

⚖️ Weight
13,5 kg

🏷️ Model
TUDOR AGM

## Description

## Auxiliary battery AGM Tudor TK457 12V 45Ah 380A

The **Tudor TK457** 45Ah 380A 12V battery belongs to Tudor's range of auxiliary batteries, developed from its experience as an original-equipment manufacturer for the automotive industry. They power the vehicle's electrical equipment and act as a complement to the main starter battery, ensuring the correct operation of on-board systems in start-stop vehicles.

### Ideal for:

- Start-stop vehicles
- Powering auxiliary electrical equipment
- On-board comfort and safety systems

### Benefits and features of the Tudor TK457 battery

- Ensures comfort features, safety systems and fuel-saving functions
- Withstands deep discharges, ideal for the constant restarts of a start-stop system
- Sealed, maintenance-free AGM/VRLA technology
- Ideal for city use
- More robust than a conventional battery
- Long service life, even in storage

### How to choose the right battery for your vehicle?

In recent years, the energy requirements of vehicles have increased by almost 300%. To get it right, it is essential to consider not only the engine's power and displacement, but also the equipment, the climate and your driving style. The extensive Tudor battery range offers a complete and varied catalogue to meet the electrical demands of any vehicle or device. If you cannot find the battery you need or have any doubts about which to choose, please do not hesitate to contact us.

## Frequently asked questions

### How do I know if the TK457 model fits my car?

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 TK457; 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 fit the TK457 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 warranty period of this battery?

This battery includes 2 years of official manufacturer warranty against manufacturing defects. It applies to defects such as damaged cells, internal short-circuits or abnormal capacity loss. Wear from misuse (prolonged overcharging, wrong charger or faulty alternator) is not covered. If the battery fails, we replace it at no cost after a technical inspection.

### How long does Tudor TK457 delivery take?

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.

### How do I return the TK457 model if it doesn't fit?

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 Tudor TK457 battery cost?

The current price at baterias.com is 211,74 € (VAT included; 174,99 € excl. VAT), updated every 24 hours. The applicable VAT may vary with the destination country and is confirmed in the cart. Shipping cost is calculated in the cart based on destination and chosen service (standard, express, cash on delivery).

### Where can I buy the Tudor TK457 battery?

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 Tudor TK457 battery last?

Expected lifespan of the Tudor TK457 is 4 to 7 years in regular use (depends on technology and climate). 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 Tudor TK457 battery?

Dimensions (length × width × height) are 237×127×227 mm — also written as 237x127x227 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 is the weight of the TK457 model?

It weighs 13,5 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).

### Which batteries are equivalent to the Tudor TK457?

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.

### Which is better: Tudor TK457 or an alternative from another brand?

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 Exide Technologies) 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 Tudor TK457 battery?

The product rating, when available, is shown on the product page next to the stars. You can also check our public Trustpilot profile at shop level (4.5/5 from 11,031+ 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.


## 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

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*baterias.com — Automotive batteries · 2026-08-07*