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Fulmen FB800 · Car battery 12V 80Ah 640A

Specifications

BrandFulmen
Part numberFB800
Voltage (V)12
Capacity (C20)80Ah (c20)
Cold cranking amps (EN)640A
TechnologyLead-acid
Length315 mm
Width175 mm
Height190 mm
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Fulmen FB800 12V 80Ah 640A 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
Voltage
12 V
Capacity
80 Ah C20
Cold cranking
640 A EN-1
Dimensions
315×175×190 mm
Technology
Lead-acid
Polarity
Positive on the right
Weight
19 kg
Model
FULMEN Formula
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Car battery Fulmen FB800 Formula 80Ah 640A 12V

12VVoltage
80AhCapacity
640ACold cranking
19kgWeight

With 80 Ah at 12 V and 640 A of cold cranking current (EN), the Fulmen FB800 from the Formula range is a starter battery built for passenger cars with conventional starting, without a Start-Stop system. It measures 315 × 175 × 190 mm and the positive terminal on the right, the format sought by anyone replacing a 80 Ah battery in cars.

In short: the Fulmen FB800 (80 Ah, 640 A, 315 × 175 × 190 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: Exide EB800 and Tudor TB800.

  • 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 FB800 is for

The Fulmen FB800 covers the needs of passenger cars with conventional starting, without a Start-Stop system: reliable starting, stable voltage for the electronics and a service life of several years in daily use. Check that it matches your current battery in size and terminal position. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 19 kg and B13 hold-down.

Size, terminals and hold-down of the Fulmen FB800

The Fulmen FB800 is made in the 315 × 175 × 190 mm format and weighs 19 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.

The Fulmen FB800: Formula range and conventional lead-acid technology

The Formula is the Fulmen range the FB800 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.

In a conventional battery the electrolyte is liquid and the lead plates are immersed in it. It is a mature, economical and easily recycled technology, ideal for starting vehicles in normal use.

What Fulmen does differently

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.

Official warranty

The Fulmen FB800 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

Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for 14 days if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.

  • Reference
    BCOM-FULMEN-FB800

Data sheet

  • Brand
    FULMEN
  • Reference
    FB800
  • Model
    FULMEN Formula
  • Voltage (V)
    12
  • Length
    315 mm
  • Width
    175 mm
  • Height
    190 mm
  • Weight
    19 Kgs
  • Technology
    Lead-acid
  • EAN
    3661024046244
  • Terminal layout
    Positive terminal on the right
  • Hold-down
    B13
  • Cold cranking amps (EN)
    640A
  • Capacity (C20)
    80Ah (c20)
  • Case type
    L04

Specific References

  • EAN13
    3661024046244
  • MPN
    FB800

Codes and references Fulmen FB800

Brand Fulmen
Manufacturer range FULMEN Formula
Manufacturer part number (MPN) FB800
EAN-13 barcode 3661024046244
European case size (EN 50342-2) L4
Dimensions (length × width × height) 315 × 175 × 190 mm (315x175x190)

Comparison: Fulmen FB800 vs equivalents — alternatives with the same dimensions, Ah and CCA

The Fulmen FB800 is interchangeable with these equivalent references: EB800 (Exide), TB800 (Tudor), TA900 (Tudor), F16 (Varta), F19 (Varta), EA900 (Exide). Higher-technology alternatives that can replace it: N80 (Varta), F21 (Varta).

Product Specifications Technology Price
Fulmen FB800 Fulmen FB800 This battery 12V 80Ah 640A Lead-acid
Exide EB800 Exide EB800 12V 80Ah 640A Lead-acid €85.60
Tudor TB800 Tudor TB800 12V 80Ah 640A Lead-acid €85.60
Tudor TA900 Tudor TA900 12V 85Ah 800A Lead-acid €81.40
Varta F16 Varta F16 12V 80Ah 740A Lead-acid €87.80
Varta F19 Varta F19 ★ 5,0 12V 85Ah 800A Lead-acid €101.80
Exide EA900 Exide EA900 ★ 5,0 12V 85Ah 800A Lead-acid €82.80
Varta N80 Varta N80 ★ 5,0 12V 80Ah 800A EFB Upgrade €126.30
Varta F21 Varta F21 ★ 4,8 12V 80Ah 800A AGM Upgrade €147.30

Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.

Recommended accessories — complement the Fulmen FB800 with a charger or tester

Fitting it yourself? Step-by-step guide to replacing the battery →

Frequently asked questions

How do I change this battery step by step?

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 right 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 many years does this battery last?

Expected lifespan of the Fulmen FB800 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 measurements of the FB800 model?

Dimensions (length × width × height) are 315×175×190 mm — also written as 315x175x190 mm and correspond to the European L4 case size — 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 FB800 battery have?

Polarity: positive on the right. 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.

Is the FB800 valid for my vehicle?

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 FB800 typically fits a wide range of European vehicles thanks to its standard DIN case format.

What are the equivalents of the FB800 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.


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