Fulbat

Fulbat FDM12-550-M24 · Dual-purpose marine battery 12V 79Ah 550A

Reference: BOL-FULBAT-FDM12-550-M24

The Fulbat FDM12-550-M24 is a dual-purpose marine battery with 12 V, 79 Ah and 550 A cold cranking current, measuring 260 × 168 × 233 mm, with the positive terminal on the left.

Voltage
12V
Capacity
79Ah
Cold cranking amps (EN)
550A
Technology
Carbon AGM
Dimensions (L × W × H)
260 × 168 × 233 mm
Polarity
Positive terminal on the left
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Where the Fulbat FDM12-550-M24 fits

The Fulbat FDM12-550-M24 combines starting and service in a single battery, the usual solution on boats with a single bank and moderate on-board consumption.

The FDM12-550-M24 belongs to the Fulbat FULBAT FDM Marine AGM Carbon range. See all Fulbat batteries

Inside the FDM12-550-M24: carbon AGM technology

Inside, the FDM12-550-M24 combines AGM with a carbon additive. It is the option for solar, marine and service use with incomplete charges.

Fulbat FDM12-550-M24 vs FDM12-800-M27 and FDM12-825-M31: which one to choose?

How the FDM12-550-M24 compares with Fulbat batteries of similar size and capacity:

ModelCapacityCold cranking (EN)Dimensions (mm)PositiveWeight
Fulbat FDM12-550-M24 (this one)79 Ah550 A260 × 168 × 233left23 kg
Fulbat FDM12-800-M2792 Ah800 A306 × 168 × 233left28.5 kg
Fulbat FDM12-825-M31105 Ah825 A330 × 173 × 237left30.6 kg
  • Fulbat FDM12-800-M27: 13 Ah more, 250 A more cranking power, a different case (306 × 168 × 233 mm).
  • Fulbat FDM12-825-M31: 26 Ah more, 275 A more cranking power, a different case (330 × 173 × 237 mm).

Equivalents and alternatives to the Fulbat FDM12-550-M24

We have no other battery with exactly the dimensions and polarity of the FDM12-550-M24. Browse the rest of our dual-purpose marine batteries (starting and service) to compare close options.

Part numbers and codes for the Fulbat FDM12-550-M24

Shops, garages and catalogues identify the FDM12-550-M24 with these codes:

Commercial referenceFDM12-550-M24
Terminal typeDUAL

What to look at before buying the FDM12-550-M24

  • Cold cranking: 550 A (EN), equal to or higher than the original.
  • Your current battery should say about 79 Ah; a little more is also fine.
  • With the terminals facing you, the positive terminal of the FDM12-550-M24 is on the left.
  • Length, width and height of the FDM12-550-M24: 260 × 168 × 233 mm.

Frequently asked questions about the Fulbat FDM12-550-M24

FDM12-550-M24 or FDM12-800-M27: which one suits me?

Compared with the FDM12-550-M24, the Fulbat FDM12-800-M27 has 13 Ah more and 250 A more cranking power. If your current battery says 800 A or more, choose the FDM12-800-M27; if it says 550 A or less, the FDM12-550-M24 is enough. Mind the space: the FDM12-800-M27 measures 306 × 168 × 233 mm.

How much does the Fulbat FDM12-550-M24 weigh?

23 kg, with 79 Ah of capacity. For reference, the Fulbat FDM12-800-M27 (92 Ah) weighs 28.5 kg.

Which side is the positive terminal on the Fulbat FDM12-550-M24?

On the FDM12-550-M24, the positive terminal is on the left with the terminals facing you: compare it with your current battery, because with reversed polarity the cables will not reach.

Do I need a special charger on board?

A charger with a profile for the battery's technology (AGM, gel or flooded) and a maintenance mode. Marine chargers usually include temperature compensation.

More batteries to compare with the FDM12-550-M24

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