Fullriver DC240-12 · Marine battery 240Ah 1200A AGM
Specifications
| Brand | FULLRIVER |
|---|---|
| Part number | DC240-12 |
| Voltage (V) | 12 |
| Capacity (C20) | 240Ah (c20) |
| Capacity (C5) | 197Ah (c5) |
| Cold cranking amps (EN) | 1200 |
| Technology | AGM |
| Length | 520.00 mm |
| Width | 269.00 mm |
Fullriver DC240-12 12V 240Ah 1200A is a marine battery with reinforced anti-vibration case for moorings and offshore use. Tolerates the typical daily cycles on a boat (engine start + night-time services such as lights, sonar, fridge) and holds voltage even when the hull is rolling in open sea.
Why this marine battery?
- Marine designbuilt for boat swell and vibration
- Dual functionstarts the engine and powers onboard services
- Sealed and safemaintenance-free even when the boat rolls
Where it fits: the Fullriver DC240-12 is one of our boat batteries, belongs to our Fullriver batteries and by capacity it sits among our 240Ah batteries.

Marine battery Fullriver DC240-12 DC 240Ah 1,200A 12V
With 240 Ah at 12 V and 1,200 A of cold cranking current (EN), the Fullriver DC240-12 from the DC range is built for motor and sailing boats, both for engine starting and onboard services. Measuring 520 × 269 × 208 mm, it is the direct replacement for boats fitted from the factory with a 240 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.
Size, terminals and hold-down of the Fullriver DC240-12
In terms of format, the Fullriver DC240-12 measures 520 × 269 × 208 mm (length × width × height) and weighs 75.20 kg. It uses M8 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 the Fullriver DC240-12 is for
On board, the Fullriver DC240-12 provides 240 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 a weight of 75.20 kg and M8 terminals.
The Fullriver DC240-12: DC range and AGM technology
The DC is the Fullriver range the DC240-12 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.
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.
Fullriver: the maker behind the DC240-12
Fullriver specialises in deep-cycle AGM batteries for mobility, marine, solar and traction. Its DC and HC series are known for their tolerance to deep discharge and long cycle life. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.
Warranty and coverage
The Fullriver DC240-12 comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.
Care and maintenance
Protect the terminals with dielectric grease and check the fixing: vibration and swell loosen connections. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.
When you get it and how to return it
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.
Data sheet
-
BrandFULLRIVER
-
ReferenceDC240-12
-
ModelFULLRIVER DC
-
Voltage (V)12
-
Length520.00 mm
-
Width269.00 mm
-
Height208.00 mm
-
Weight75.20 Kgs
-
TechnologyAGM
-
Terminal typeM8
-
Cold cranking amps (EN)1200
-
Capacity (C20)240Ah (c20)
-
Capacity (C5)197Ah (c5)
Specific References
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MPNDC240-12
Other 240Ah batteries
We stock 11 models of 240 Ah to compare by price, technology and cold cranking: see all 240Ah batteries.
Recommended accessories
Frequently asked questions
Is the Fullriver DC240-12 an AGM battery and what are the benefits of AGM?
Yes. The DC240-12 from Fullriver uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for boats with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.
In what position can it be installed on the boat?
Being AGM, it is sealed and does not spill: it can be mounted tilted (never upside down) and copes well with vibration and wave impacts. Secure it firmly and keep the terminals away from water.
What are the dimensions of the Fullriver DC240-12 battery?
Dimensions (length × width × height) are 520×269×208 mm — also written as 520x269x208 mm — following the European DIN standard. Always measure the space in your boat before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
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