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Car battery Exide EK457 12V 45Ah 380A AGM

Auxiliary battery AGM Exide EK457 12V 45Ah 380A - 1
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  • Auxiliary battery AGM Exide EK457 12V 45Ah 380A - 1
  • Auxiliary battery AGM Exide EK457 12V 45Ah 380A - 2
€211.74
VAT included
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  • 24-48h shipping
  • 14-day returns
  • Secure payment
  • +11,009 reviews

Brand EXIDE Reference EK457

Exide EK457 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 qualitywithout dealership prices
  • Lasts 4 to 6 yearsbuy once instead of twice
  • Real human tech supportif 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
EXIDE AGM

Exide

Auxiliary battery AGM Exide EK457 12V 45Ah 380A

The Exide EK457 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 EK457 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.

BCOM-EXIDE-EK457

Data sheet

Length
237mm
Width
127mm
Height
227mm
Weight
13.50 Kg
Technology
AGM
EAN
3661024038089
Scheme
Positivo Izquierda
Subjection
B00
CCA (EN)
380A
Ah (c20)
45Ah (c20)

Specific References

EAN13
3661024038089
MPN
EK457

Codes and references Exide EK457

Brand Exide · see all batteries Exide
Manufacturer reference (MPN) EK457
EAN-13 barcode 3661024038089
Dimensions (length × width × height) 237 × 127 × 227 mm (237x127x227)

How to change the battery

Step-by-step guide to replace your car battery in 15-30 minutes (longer if the battery is under the seat or in the boot) without losing vehicle settings.

⏱ 15-30 min🛠 Tools: 10 mm wrench · Protective gloves
  1. Step 1. Prepare the vehicle

    Park on a flat surface, switch off the engine and remove the key. Make sure all lights and electrical accessories are off. Wait 1-2 minutes before starting.

  2. Step 2. Locate the battery

    Open the bonnet. The battery is usually in the engine bay, but in many modern cars it may be in the boot or under the passenger seat. Check the manual if you cannot find it.

  3. Step 3. Disconnect the negative (−) terminal

    Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.

  4. Step 4. Disconnect the positive (+) terminal

    Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.

  5. Step 5. Remove the old battery

    Loosen the bottom hold-down clamp with the same wrench. Lift the battery carefully (it can weigh 15-25 kg). Clean the tray with a brush and baking soda if there is corrosion.

  6. Step 6. Install the new battery

    Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.

  7. Step 7. Connect the cables

    Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.

  8. Step 8. Verify the engine starts

    Close the bonnet. Start the engine to confirm everything works. On cars with Start-Stop or a BMS, you may need to register the battery via OBD so the alternator applies the correct charging profile.

Frequently asked questions

How do I know if the EK457 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 EK457; 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 is the Exide EK457 battery installed in the vehicle?

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 EK457 battery have?

The official manufacturer warranty is 2 years and covers manufacturing defects. It covers cell failures, internal short-circuits and abnormal capacity drops. 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 Exide EK457 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 EK457 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 Exide EK457 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 do I find the EK457 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 Exide EK457 battery last?

Expected lifespan of the Exide EK457 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 measurements of the EK457 model?

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 EK457 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).

What are the equivalents of the EK457 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.

Is the EK457 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 EK457 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 11,009+ 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.


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