# Auxiliary battery Exide EK454 12V 45Ah 380A AGM

![Auxiliary battery Exide EK454 12V 45Ah 380A AGM](https://baterias.com/5593-home_default/battery-exide-ek454-12v-45ah.jpg)

> Exide EK454 auxiliary battery 12V 45Ah 380A AGM. Dimensions 237×127×227 mm, + terminal on the right. Check fitment by plate.

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

- **Canonical URL**: https://baterias.com/gb/battery-exide-ek454-12v-45ah
- **Language**: en-GB
- **Brand**: EXIDE
- **Reference**: BCOM-EXIDE-EK454
- **EAN**: 3661024038072
- **MPN**: EK454
- **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 | 3661024038072 |
| Scheme | Positivo Derecha |
| Subjection | B00 |
| Arranque en frío CCA EN | 380 A |
| Capacidad C20 (Ah) | 45 Ah (c20) |

## Quick description

**Exide EK454 12V 45Ah 380A** is an auxiliary battery: it supports the Start-Stop system and on-board electronics during stops, without draining the main battery.

### Why this auxiliary battery?

- **Designed for Start-Stop** built for the intensive cycling of modern cars
- **2 to 3 times longer life** vs fitting a cheap conventional battery
- **Fast recovery** recharges in minutes once the engine is running

🔌 Voltage
12 V

⚡ Capacity
45 Ah C20

🔋 Cold cranking
380 A EN-1

📏 Dimensions
237×127×227 mm

⚙️ Technology
AGM

🧭 Polarity
Positivo a la derecha

⚖️ Weight
13,5 kg

🏷️ Model
EXIDE AGM

## Description

## Auxiliary battery AGM Exide EK454 12V 45Ah 380A

The **Exide EK454** 45Ah 380A 12V battery belongs to Exide'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 Exide EK454 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 Exide 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 check that the Exide EK454 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 EK454; 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 EK454 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 warranty does the Exide EK454 battery have?

The official manufacturer warranty is 2 years and covers manufacturing defects. Coverage includes cell breakdowns, internal short-circuits and abnormal capacity decreases. It does NOT cover misuse (prolonged overcharging, inadequate charger, defective alternator). Once the defect is verified by technical inspection, we replace the EK454 at no cost.

### When will I receive the EK454 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.

### Are returns accepted on this battery?

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 Exide EK454 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 this battery with full warranty?

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 Exide EK454 battery last?

Expected lifespan of the Exide EK454 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 Exide EK454 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.

### How much does the Exide EK454 battery weigh?

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 Exide EK454?

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 EK454 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 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 reviews does the EK454 model have?

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*