12VVoltage
80AhAmp-hours at C20
640AStarting power (EN)
Summary: Put simply: Fulmen FB800, rated 80Ah 12V 640A, sold for cars and vans. Size and polarity decide most swaps, and both are listed on this page.
Specifications table
BrandFulmen
Model codeFB800
RangeFULMEN Formula
Suitscars and vans
Voltage12V
Amp-hours at C2080Ah
Starting power (EN)640A
ChemistryLead-acid
Size L × W × H315 × 175 × 190 mm
Weight19 kg
Polaritypositive on the right-hand side
EAN barcode3661024046244
Using it day to day: practical tips
A second car that only comes out at weekends tends to have a tired battery by the end of winter. Lift the battery straight up, never by the terminals. Interior lights that fade when the starter turns are another hint.
Same size and layout
If you prefer another make, these fit the same space with the same terminal side.
Deta DB800Exide EB800Kronobat PB-80.0Tudor TB800Varta F16
Fulmen FB800: what it is and who it suits
Found Fulmen FB800 printed on the battery lid? That code leads here. On paper it reads 80Ah 12V 640A, which is what most drivers compare first. People pick batteries online at baterias.online because the measurements and ratings are on show before the basket.
Owners with lots of accessories appreciate 80Ah in cars and vans.
Questions and answers
What does the Fulmen FB800 weigh in kilograms?
19 kg is the listed weight. For larger batteries, a second pair of hands makes fitting safer.
How many cold cranking amps does this battery give?
The rated cranking current is 640A to the EN standard. This is the key figure for cold weather starting.
How do I compare size and polarity?
Check two things together: size (315 × 175 × 190 mm) and orientation (positive on the right-hand side). Both must match.
Does a battery lose charge on the shelf?
It is a good idea. All batteries lose some charge on the shelf, so a top-up before fitting helps.
Make sure it fits your vehicle or equipment
- ✓ Before ordering, glance at your current battery: this reference is positive on the right-hand side, and your cables need to reach that corner.
- ✓ Do not go far below your old battery's capacity; this one has 80Ah.
- ✓ Cold cranking current reaches 640A. It ought to equal the carmaker's requirement at minimum, more so for diesels in cold winters.
Related products and ranges
Prefer to compare first? The links below lead to other options for cars and vans on baterias.online. Checking the data first saves the hassle of a wrong order.
The lead-acid technology explained
Each cell in a flooded battery produces about two volts. A wet-cell battery copes well with high engine-bay temperatures. Keep a flooded battery upright and the vent path clear.
