Fulmen FA852 Formula Xtreme · Car battery 85Ah 800A

Car battery Fulmen FA852 Formula Xtreme 85Ah 800A 12V

The Fulmen FA852 car battery is rated at 12 V, 85 Ah and 800 A of cold cranking current (EN) from the Formula Xtreme range, and is designed for passenger cars with conventional starting, without a Start-Stop system. It measures 315 × 175 × 175 mm and the positive terminal on the right, the format sought by anyone replacing a 85 Ah battery in cars.

In short: the Fulmen FA852 (85 Ah, 800 A, 315 × 175 × 175 mm, positive terminal on the right). 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 TA852 and Varta F18.

• 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.

What the Fulmen FA852 is for

With 85 Ah, the Fulmen FA852 is sized for passenger cars with conventional starting, without a Start-Stop system. It is a direct replacement for the original battery as long as dimensions and terminals match. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 18.60 kg and B13 hold-down.

Will it fit your current battery tray?

In terms of format, the Fulmen FA852 measures 315 × 175 × 175 mm (length × width × height) and weighs 18.60 kg. The positive terminal on the right 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 B13 hold-down, the system that anchors and connects it in the vehicle. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters.

Fulmen: the maker behind the FA852

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. All the Fulmen batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

The Fulmen FA852: Formula Xtreme range and conventional lead-acid technology

The Formula Xtreme is the Fulmen range the FA852 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.

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.

Usage and maintenance tips

Avoid leaving lights or accessories on with the engine off: most batteries fail not through defects but through repeated deep discharges. 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 FA852 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.

When you get it and how to return it

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.