Fulbat FDM12-800-M27 · Marine battery 12V 92Ah 800A AGM CARBON

Marine battery Fulbat FDM12-800-M27 92Ah 800A 12V

With 92 Ah at 12 V and 800 A of cold cranking current (EN), the Fulbat FDM12-800-M27 is built for motor and sailing boats, both for engine starting and onboard services. Measuring 306 × 168 × 233 mm and the positive terminal on the left, it is the direct replacement for boats fitted from the factory with a 92 Ah battery of this format.

• Sealed: no spills or gases in the locker.
• Resistant to humidity and salt air.
• AGM: faster recharging and better cycle resistance than a conventional battery.
• Ready for starting outboard and inboard engines.

What the Fulbat FDM12-800-M27 is for

On board, the Fulbat FDM12-800-M27 provides 92 Ah with a case reinforced against vibration and swell. Keep the terminals clean and protected from salt humidity. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has DT terminals.

Technology inside the Fulbat FDM12-800-M27

The FDM12-800-M27 is one of the Fulbat references for this type of use; it shares the same manufacturing and quality-control criteria as the rest of the brand's catalogue.

In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.

Size, terminals and hold-down of the Fulbat FDM12-800-M27

In terms of format, the Fulbat FDM12-800-M27 measures 306 × 168 × 233 mm (length × width × height). 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 DT terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

What Fulbat does differently

French brand Fulbat is a European reference in motorcycle, garden and leisure batteries: compact ranges, clear JIS codes and a consistent quality that workshops know well. We guarantee that every Fulbat arrives new, charged and with the manufacturer's full warranty.

Care and maintenance

At the end of the season, charge the battery fully and, if possible, keep it on a charger over the winter lay-up. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.

Official warranty

The Fulbat FDM12-800-M27 comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.

Shipping, delivery 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.