Fulmen FB451 · Car battery 12V 45Ah 330A

Car battery Fulmen FB451 Formula 45Ah 330A 12V

The Fulmen FB451 from the Formula range delivers 45 Ah and 330 A of cold cranking current (EN) at 12 V: the usual specification for passenger cars with conventional starting, without a Start-Stop system. Measuring 220 × 135 × 225 mm and the positive terminal on the left, it is the direct replacement for cars fitted from the factory with a 45 Ah battery of this format.

In short: the Fulmen FB451 (45 Ah, 330 A, 220 × 135 × 225 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 TB451 and Varta B24.

• Good balance of capacity, cranking power and price.
• Stable voltage for the vehicle electronics (ECU, sensors, climate control).
• Low self-discharge: copes with long stops without losing charge.
• Designed to last several years under normal daily use.

What the Fulmen FB451 is for

Designed for passenger cars with conventional starting, without a Start-Stop system, the Fulmen FB451 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 12.50 kg and B01 hold-down.

Will it fit your current battery tray?

In terms of format, the Fulmen FB451 measures 220 × 135 × 225 mm (length × width × height) and weighs 12.50 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 B01 hold-down, 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.

Fulmen: the maker behind the FB451

Fulmen is the historic French brand of the Exide group: batteries made on the same lines and with the same technology as original equipment, widely used by workshops across Europe. All the Fulmen batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

The Fulmen FB451: Formula range and conventional lead-acid technology

The FB451 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.

The conventional lead-acid battery remains the most widespread technology thanks to its balance of capacity, cranking current and price. Well maintained and kept charged, it offers years of reliable service in vehicles without Start-Stop.

Usage and maintenance tips

On batteries with filler caps, check the electrolyte level and top up only with distilled water. Keep the terminals clean and tight, and check that the resting voltage does not drop below 12.4 V: below that it is time to recharge.

Official warranty

The Fulmen FB451 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.

Shipping, delivery 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.