Fulmen FB457 · Car battery 12V 45Ah 330A
Specifications
| Brand | Fulmen |
|---|---|
| Part number | FB457 |
| Voltage (V) | 12 |
| Capacity (C20) | 45Ah (c20) |
| Cold cranking amps (EN) | 330A |
| Technology | Lead-acid |
| Length | 237 mm |
| Width | 127 mm |
| Height | 227 mm |
This product is priced on demand to offer you the best available price at all times.
Please contact us to request a quote and we will inform you about availability and the best price on the entire website, as well as the delivery time.
Thank you
Fulmen FB457 12V 45Ah 330A is a starter battery with OEM-equivalent quality, designed for modern passenger cars. Delivers reliable cold-cranks even after weeks of inactivity and supports stable auxiliary loads (lights, 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
Request a quote for your Car battery Fulmen FB457 12V 45Ah 330A
- Reply in under 24 working hours
- Best price guaranteed

Car battery Fulmen FB457 Formula 45Ah 330A 12V
With 45 Ah at 12 V and 330 A of cold cranking current (EN), the Fulmen FB457 from the Formula range is a starter battery built for passenger cars with conventional starting, without a Start-Stop system. It measures 237 × 127 × 227 mm and the positive terminal on the left, the format sought by anyone replacing a 45 Ah battery in cars.
In short: the Fulmen FB457 (45 Ah, 330 A, 237 × 127 × 227 mm, positive terminal on the left). It is a conventional battery for cars without Start-Stop: if yours has Start-Stop, it needs an EFB or AGM battery of the same size. Verified equivalent alternatives: Tudor TB457 and Varta B33.
- Original-equipment build quality without the dealership price.
- Direct replacement for the original battery in size and terminals.
- Reliable cold starts, even after weeks without driving.
- Conventional lead-acid: the most proven and economical technology.
Dimensions, polarity and mounting
In terms of format, the Fulmen FB457 measures 237 × 127 × 227 mm (length × width × height) and weighs 11.40 kg. The positive terminal on the left decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses a B00 hold-down and 3 terminals, the system that anchors and connects it in the vehicle. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change.
What the Fulmen FB457 is for
Designed for passenger cars with conventional starting, without a Start-Stop system, the Fulmen FB457 is the direct replacement when your vehicle uses a 45 Ah battery of this format. Before buying, compare dimensions, terminals and capacity with the battery you are replacing. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 11.40 kg, 3 terminals and B00 hold-down.
The Fulmen FB457: Formula range and conventional lead-acid technology
The FB457 is part of the Fulmen Formula range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.
Conventional lead-acid is the benchmark against which other technologies are compared: good cranking current, great tolerance to alternator charging and the best price per amp-hour.
Fulmen: the maker behind the FB457
With more than a century of history, Fulmen offers complete ranges for cars, trucks, motorcycles and leisure with the industrial quality of the Exide group. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.
Manufacturer's warranty
The Fulmen FB457 comes with the manufacturer's official warranty against manufacturing defects; the exact period is stated in the brand's conditions. If it fails through a defect within the period, we replace it free of charge.
Care and maintenance
Avoid leaving lights or accessories on with the engine off: most batteries fail not through defects but through repeated deep discharges. In normal daily use the alternator keeps the battery charged; if the car stands for weeks, a maintenance charge once a month prevents deep discharge.
Delivery times and returns
Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.
Data sheet
-
BrandFULMEN
-
ReferenceFB457
-
ModelFULMEN Formula
-
Voltage (V)12
-
Length237 mm
-
Width127 mm
-
Height227 mm
-
Weight11.40 Kgs
-
TechnologyLead-acid
-
EAN3661024044363
-
Terminal layoutPositive terminal on the left
-
Terminal type3
-
Hold-downB00
-
Cold cranking amps (EN)330A
-
Capacity (C20)45Ah (c20)
-
Case typeB24
Specific References
-
EAN133661024044363
-
MPNFB457
Codes and references Fulmen FB457
| Brand | Fulmen |
|---|---|
| Manufacturer range | Dynamic SLI (formerly Blue Dynamic) |
| Manufacturer part number (MPN) | FB457 |
| Also known as | 545157033 · Fulmen Blue Dynamic FB457 · Fulmen Dynamic SLI FB457 |
| ETN code | 5451570333132 (short form 545 157 033) |
| EAN-13 barcode | 3661024044363 |
| Dimensions (length × width × height) | 237 × 127 × 227 mm (237x127x227) |
Comparison: Fulmen FB457 vs equivalents
The Fulmen FB457 is interchangeable with these equivalent references: TB457 (Tudor), B33 (Varta), EB457 (Exide). Higher-technology alternatives that can replace it: A11 (Varta), EK457 (Exide), TK457 (Tudor).
| Product | Specifications | Technology | Price |
|---|---|---|---|
|
|
12V 45Ah 330A | Lead-acid | |
|
|
12V 45Ah 330A | Lead-acid | €52.40 |
|
|
12V 45Ah 330A | Lead-acid | €49.80 |
|
|
12V 45Ah 330A | Lead-acid | €83.20 |
|
|
12V 45Ah 370A | AGM Upgrade | €138.60 |
|
|
45Ah 380A | AGM Upgrade | €212.40 |
|
|
45Ah 380A | AGM Upgrade | €212.40 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Recommended accessories
Compatible vehicles
The Fulmen FB457 fits 135 vehicles. Most searched below:
Fitting it yourself? Step-by-step guide to replacing the battery →
Frequently asked questions
How do I fit the FB457 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 our blog. 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 — with positive on the left 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.
How long does the Fulmen FB457 battery last?
Expected lifespan of the Fulmen FB457 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 Fulmen FB457 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 polarity does the Fulmen FB457 battery have?
Polarity: positive on the left. To identify it, place the battery in front of you with the terminals facing you and check which side the positive (+, marked with a red ring) is on. Before buying, verify the polarity matches your current battery: switching polarity forces longer cables or system reconfiguration, with short-circuit risk.
Under which reference is the Fulmen FB457 listed in catalogues?
The manufacturer reference (MPN) is FB457 and its ETN code is 5451570333132 (short form 545 157 033), the European identifier used in spare-part catalogues. The EAN-13 barcode is 3661024044363. It belongs to the Varta Dynamic SLI range. Any of these codes identifies exactly this battery when requesting quotes or comparing prices.
Does this 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 FB457 fits 135 verified vehicle versions in our database.
Which batteries are equivalent to the Fulmen FB457?
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.
The top-rated online battery store in Spain
-
Audited by Trustpilot, no filters, no edits. The top-rated battery store in Spain.
Trustpilot · verified, no filters
-
Official Varta distributor
Official Varta wholesale distributor. 100% genuine batteries, recently manufactured, best price and no middlemen.
World’s best-selling battery brand
-
+100,000 satisfied customers
More than 100,000 customers already trust baterias.com — and recommend us to their friends and family.
They trust us and recommend us
Choose trust, choose quality, choose baterias.com.