# Fulbat FDM12-1000 · Dual-purpose marine battery 12V 240Ah 1,000A

![Fulbat FDM12-1000 · Dual-purpose marine battery 12V 240Ah 1,000A](https://bateriasonline.es/462-home_default/fulbat-fdm12-1000.jpg)

> Fulbat FDM12-1000: 240 Ah dual-purpose marine battery, 1,000 A (EN), 517×272×240 mm, positive terminal on the left, carbon AGM. Equivalent to Exide EP2100.

**Category:** [Dual-purpose marine batteries (starting and service)](https://bateriasonline.es/en/dual-purpose-marine-batteries) → [Fulbat](https://bateriasonline.es/en/fulbat-batteries)

- **Canonical URL**: https://bateriasonline.es/en/fulbat-fdm12-1000
- **Language**: en
- **Brand**: Fulbat
- **Reference**: BOL-FULBAT-FDM12-1000
- **MPN**: FDM12-1000
- **Last updated**: 2026-10-27

## Technical specifications

| Feature | Value |
|---|---|
| Brand | Fulbat |
| Range | FULBAT FDM Marine AGM Carbon |
| Application | Boats (starting and service) |
| Technology | Carbon AGM |
| Voltage | 12 V |
| Capacity | 240 Ah |
| Cold cranking amps (EN) | 1000 A |
| Length | 517 mm |
| Width | 272 mm |
| Height | 240 mm |
| Weight | 71 kg |
| Polarity | Positive terminal on the left |
| Terminal type | AUTOMOTIVE |

## Quick description

The Fulbat FDM12-1000 is a dual-purpose marine battery with 12 V, 240 Ah and 1,000 A cold cranking current, measuring 517 × 272 × 240 mm, with the positive terminal on the left.

## Description

## Where the Fulbat FDM12-1000 fits

The Fulbat FDM12-1000 combines starting and service in a single battery, the usual solution on boats with a single bank and moderate on-board consumption.
The FDM12-1000 belongs to the Fulbat FULBAT FDM Marine AGM Carbon range. [See all Fulbat batteries](https://bateriasonline.es/en/fulbat-batteries)

## Carbon AGM technology in the FDM12-1000

Inside, the FDM12-1000 combines AGM with a carbon additive. It is the option for solar, marine and service use with incomplete charges.

## Fulbat FDM12-1000 vs FDM12-900: differences

How the FDM12-1000 compares with Fulbat batteries of similar size and capacity:

| Model | Capacity | Cold cranking (EN) | Dimensions (mm) | Positive | Weight |
|---|---|---|---|---|---|
| Fulbat FDM12-1000 (this one) | 240 Ah | 1,000 A | 517 × 272 × 240 | left | 71 kg |
| Fulbat FDM12-900 | 180 Ah | 900 A | 512 × 222 × 218 | left | 51 kg |

- Fulbat FDM12-900: 60 Ah less, 100 A less cranking power, a different case (512 × 222 × 218 mm).

## Equivalents and alternatives to the Fulbat FDM12-1000

As the FDM12-1000 is an AGM battery, we only list other AGM batteries with its dimensions and polarity: neither an EFB nor a conventional battery can replace it.

| Model | Technology | Capacity | Cold cranking (EN) | Dimensions (mm) |
|---|---|---|---|---|
| Exide EP2100 | AGM | 240 Ah | 1,200 A | 518 × 274 × 240 |

## Fulbat FDM12-1000 codes and part numbers

Shops, garages and catalogues identify the FDM12-1000 with these codes:

| Commercial reference | FDM12-1000 |
|---|---|
| Terminal type | AUTOMOTIVE |

## Check this before ordering the Fulbat FDM12-1000

- The FDM12-1000 delivers 1,000 A cold cranking (EN standard); do not go below what your original battery states.
- With 240 Ah, the FDM12-1000 replaces an original battery of that capacity or slightly less.
- The FDM12-1000 has the positive terminal on the left: compare it with your current battery.
- The FDM12-1000 needs 517 × 272 × 240 mm of space: measure it with the hold-down clamp in place.

## Frequently asked questions about the Fulbat FDM12-1000

### Fulbat FDM12-1000 or FDM12-900?

Compared with the FDM12-1000, the Fulbat FDM12-900 has 60 Ah less and 100 A less cranking power. The FDM12-1000 cranks harder; the FDM12-900 is only a good option if your original battery says 900 A or less. Mind the space: the FDM12-900 measures 512 × 222 × 218 mm.

### How much does the Fulbat FDM12-1000 weigh?

The FDM12-1000 weighs 71 kg. For reference, the Fulbat FDM12-900 (180 Ah) weighs 51 kg.

### Which battery is equivalent to the Fulbat FDM12-1000?

Only other AGM batteries with its dimensions and polarity: Exide EP2100. Neither an EFB nor a conventional battery replaces the FDM12-1000.

### Which side is the positive terminal on the Fulbat FDM12-1000?

The FDM12-1000 has the positive terminal on the left, looking at the battery from its long side with the terminals closest to you.

## Keep comparing: alternatives to the FDM12-1000

- [All dual-purpose marine batteries (starting and service)](https://bateriasonline.es/en/dual-purpose-marine-batteries)
- [More Fulbat models](https://bateriasonline.es/en/fulbat-batteries)
- [Exide EP2100](https://bateriasonline.es/en/exide-ep2100) · 240 Ah, 1,200 A, 518×274×240 mm

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*bateriasonline.es — Batteries and accessories · 2026-11-10*