Fullriver DCG240-12 · Caravan battery 12V 240Ah AGM
Specifications
| Brand | FULLRIVER |
|---|---|
| Part number | DCG240-12 |
| Voltage (V) | 12 |
| Capacity (C20) | 240Ah (c20) |
| Capacity (C5) | 195Ah (c5) |
| Technology | AGM |
| Length | 527.00 mm |
| Width | 287.00 mm |
| Height | 235.00 mm |
€980.50
VAT included
4,68/5★★★★★10 reviewsVerified purchases
- ★★★★Diego Arias:
Gracias a vosotros pude instalar correctamente la batería
- ★★★★★Roberto Cruz:
Me ayudaron con la instalación de mi batería
- ★★★★★Victor Mora:
Pedí la batería un lunes a las 7 y me llegó el martes a las 4
Fullriver DCG240-12 12V 240Ah is a battery for auxiliary services in motorhomes, caravans and campers. Powers the fridge, interior lighting, water pump and sockets while parked, with no need for campsite mains. Withstands daily discharges throughout the season.
Why this caravan battery?
- Real off-grid autonomyno campsite hookup needed
- Lasts the whole seasonhandles daily discharges without capacity loss
- Powers it all at oncefridge, water pump, LED and USB without issues
Voltage
12 V
Capacity
240 Ah
Dimensions
527×287×257 mm
Technology
AGM
Weight
79,7 kg
Model
DCG Series
Marine battery Fullriver DCG240-12 DCG 240Ah 12V
12VVoltage
240AhCapacity
79.70kgWeight
The Fullriver DCG240-12 with AGM technology is a marine battery with 240 Ah for motor and sailing boats, both for engine starting and onboard services. It replaces the original battery without adaptation in boats with a 527 × 287 × 235 mm format: same 240 Ah capacity.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
- Reinforced case against vibration and swell.
- Powers onboard services: lights, sounder, GPS, fridge.
- Tolerates the daily cycling of a boat in season.
What the Fullriver DCG240-12 is for
The Fullriver DCG240-12 is designed for motor and sailing boats, both for engine starting and onboard services. If it is your starter battery, run the services from a separate battery; if it is a service battery, avoid routinely discharging it beyond 50%. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 79.70 kg and DT terminals.
The Fullriver DCG240-12: DCG range and AGM technology
Within the Fullriver catalogue, the DCG series groups the references designed for this use. The DCG240-12 is the 240 Ah model of that family, with the same performance as its siblings in other sizes.
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 527 × 287 × 235 mm and weighs 79.70 kg. 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 Fullriver batteries
With its own plants and a catalogue focused on high-performance AGM, Fullriver is a familiar brand in power wheelchairs, boats and photovoltaic systems that need thousands of cycles. We guarantee that every Fullriver arrives new, charged and with the manufacturer's full warranty.
How to make it last longer
As a service battery, avoid routine discharges below 50% to extend its cycle life. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.
Official warranty
The Fullriver DCG240-12 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
Order before 6:00 pm with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have 14 days to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email.
BCOM-FULLRIVER-DCG240-12
Data sheet
- Brand
- FULLRIVER
- Reference
- DCG240-12
- Model
- FULLRIVER DCG
- Voltage (V)
- 12
- Length
- 527.00 mm
- Width
- 287.00 mm
- Height
- 235.00 mm
- Weight
- 79.7 Kgs
- Technology
- AGM
- Terminal type
- DT
- Capacity (C20)
- 240Ah (c20)
- Capacity (C5)
- 195Ah (c5)
Specific References
- MPN
- DCG240-12
4,68/5
Verified purchasesLatest verified reviews
★★★★★Diego Arias
03/06/2026Me indicaron cómo instalar la batería
Gracias a vosotros pude instalar correctamente la batería
★★★★★Roberto Cruz
11/02/2026Los mejores
Me ayudaron con la instalación de mi batería
★★★★★Victor Mora
31/01/2026En plazo
Pedí la batería un lunes a las 7 y me llegó el martes a las 4
★★★★★Guillermo Crespo
25/10/2025Me ayudaron a poner la batería
Gracias a vosotros pude instalar correctamente la bateria
Recommended accessories
How to change the battery
Guide to replace a marine battery (cranking or house) in 20-30 minutes. Moisture and vibration in marine environments require reinforced hold-downs and sealed copper terminals.
Step 1. Prepare the vehicle
Park on a flat surface, switch off the engine and remove the key. Make sure all lights and electrical accessories are off. Wait 1-2 minutes before starting.
Step 2. Locate the battery compartment
Usually under the passenger bench, engine room or a dedicated ventilated compartment. Verify the compartment is dry and well ventilated before opening.
Step 3. Disconnect the negative (−) terminal
Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.
Step 4. Disconnect the positive (+) terminal
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
Step 5. Remove the old battery
Marine batteries are heavy (15-50 kg). If it has rope handles, use them; otherwise have a carry strap ready. Secure the new one with metal hold-downs (not plastic) to resist sea-state vibration.
Step 6. Install the new battery
Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.
Step 7. Connect the cables
Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.
Step 8. Verify circuit + water protection
Apply dielectric grease on terminals to prevent salt-air corrosion. Check the engine charging circuit delivers 13.8-14.4 V at 2,000 rpm.
Frequently asked questions
Is the Fullriver DCG240-12 an AGM battery and what are the benefits of AGM?
Yes. The DCG240-12 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.
How is the Fullriver DCG240-12 battery installed in the vehicle?
In most boats 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 this page. 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 (−) 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 — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On boats with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
How long does the Fullriver DCG240-12 battery last?
Expected lifespan of the Fullriver DCG240-12 is 5 to 8 years in mild-climate boat use with Start-Stop. 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 Fullriver DCG240-12 battery?
Dimensions (length × width × height) are 527×287×257 mm — also written as 527x287x257 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.
Is the DCG240-12 valid for my vehicle?
Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The DCG240-12 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Fullriver DCG240-12?
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 — an EFB cannot be replaced with a conventional battery in Start-Stop boats. See the "Equivalents" section to view recommended options at the same performance level.
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