Fulbat FDM12-550-M24 · Marine battery 12V 79Ah 550A AGM CARBON

Marine battery Fulbat FDM12-550-M24 79Ah 550A 12V

With 79 Ah at 12 V and 550 A of cold cranking current (EN), the Fulbat FDM12-550-M24 is built for motor and sailing boats, both for engine starting and onboard services. Measuring 260 × 168 × 233 mm and the positive terminal on the left, it is the direct replacement for boats fitted from the factory with a 79 Ah battery of this format.

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

What the Fulbat FDM12-550-M24 is for

On board, the Fulbat FDM12-550-M24 provides 79 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 FDM12-550-M24

Within the Fulbat catalogue, the FDM12-550-M24 is the 79 Ah model designed for this application.

AGM (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery.

Will it fit your current battery tray?

It has external dimensions of 260 × 168 × 233 mm. 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. 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.

Why choose Fulbat batteries

Fulbat has manufactured in France since 1978 and specialises in motorcycles and light vehicles. Its catalogue is short and clear, covers almost the whole fleet and works only with sealed, leak-free batteries. All the Fulbat batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

How to make it last longer

Protect the terminals with dielectric grease and check the fixing: vibration and swell loosen connections. As a service battery, avoid routine discharges below 50% to extend its cycle life.

Manufacturer's warranty

The Fulbat FDM12-550-M24 comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.

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.