# Marine battery Fulbat FDM12-1000 12V 240Ah 1000A AGM CARBON ![Marine battery Fulbat FDM12-1000 12V 240Ah 1000A AGM CARBON](https://baterias.com/6395-home_default/battery-fulbat-fdm12-1000-12v-240ah-1000a.jpg) > Fulbat FDM12-1000 marine battery 12V 240Ah 1000A AGM CARBON. FDM Marine AGM Carbon range. Dimensions 517Γ—272Γ—240 mm, + terminal on the left. **Category:** [Marine Dual Purpose Batteries](https://baterias.com/gb/marine-dual-purpose-batteries) β†’ [FULBAT](https://baterias.com/gb/fulbat) - **Canonical URL**: https://baterias.com/gb/battery-fulbat-fdm12-1000-12v-240ah-1000a - **Language**: en-GB - **Brand**: FULBAT - **Reference**: BCOM-FULBAT-FDM12-1000 - **MPN**: FDM12-1000 - **Stock**: Out of stock ## Technical specifications | Feature | Value | |---|---| | Brand | FULBAT | | Model | FULBAT FDM Marine AGM Carbon | | Voltage (V) | 12 V | | Largo | 517 mm | | Ancho | 272 mm | | Alto | 240 mm | | TecnologΓ­a | AGM Carbon | | Terminal layout | Positive left | | Terminal type | EN | | Cold cranking amps (EN) | 1000 A | | Capacity (C20) | 240 Ah | ## Quick description **Fulbat FDM12-1000 12V 240Ah 1000A** is a quality battery with official manufacturer warranty, confirmed stock and 24-48 h delivery across the peninsula. ## Why this battery? - **Tested and certified** to European EN standards for maximum reliability - **Sealed and maintenance-free** ready to use out of the box - **Long working life** optimised for its real-world use case πŸ”Œ Voltage 12 V ⚑ Capacity 240 Ah C20 πŸ”‹ Cold cranking 1000 A EN-1 πŸ“ Dimensions 517Γ—272Γ—240 mm βš™οΈ Technology AGM 🧭 Polarity Positive on the left ## Description ## Marine battery Fulbat FDM12-1000 240Ah 1,000A 12V 12*V* Voltage 240*Ah* Capacity 1,000*A* Cold cranking The **Fulbat FDM12-1000** with AGM technology is a marine battery with **240 Ah** and **1,000 A** of cold cranking current (EN) for motor and sailing boats, both for engine starting and onboard services. Its 517 Γ— 272 Γ— 240 mm and the positive terminal on the left make it the exact replacement for the 240 Ah battery fitted as standard to many boats. - Ready for starting outboard and inboard engines. - AGM: faster recharging and better cycle resistance than a conventional battery. - Resistant to humidity and salt air. - Sealed: no spills or gases in the locker. ### What the Fulbat FDM12-1000 is for With 240 Ah, the Fulbat FDM12-1000 covers motor and sailing boats, both for engine starting and onboard services. At the end of the season, charge it fully before winter storage. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has EN terminals. ### Technology inside the Fulbat FDM12-1000 The FDM12-1000 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. AGM means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly. ### Dimensions, polarity and mounting It has external dimensions of 517 Γ— 272 Γ— 240 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 EN 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. ### Usage and maintenance tips Protect the terminals with dielectric grease and check the fixing: vibration and swell loosen connections. At the end of the season, charge the battery fully and, if possible, keep it on a charger over the winter lay-up. ### Warranty and coverage The Fulbat FDM12-1000 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 [[ks:cutoff]]**: 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 **[[ks:return_days]] days** if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email. ## Frequently asked questions ### How is the Fulbat FDM12-1000 battery installed in the vehicle? In most cars it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on our blog. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (βˆ’) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation β€” match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (βˆ’). On cars with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile. ### What is the service life of the FDM12-1000 model? Expected lifespan of the Fulbat FDM12-1000 is 4 to 7 years in regular use (depends on technology and climate). In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured. ### What are the dimensions of the Fulbat FDM12-1000 battery? Dimensions (length Γ— width Γ— height) are 517Γ—272Γ—240 mm β€” also written as 517x272x240 mm β€” following the European DIN standard. Always measure the space in your car before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals. ### Which interchangeable batteries are there for this one? Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology β€” an EFB cannot be replaced with a conventional battery in Start-Stop cars. See the "Equivalents" section to view recommended options at the same performance level. ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team β€” automotive battery specialists since 2015. β†’ https://baterias.com/gb/technical-team --- *baterias.com β€” Automotive batteries Β· 2026-10-15*