Fullriver DC50-12A · Marine battery 12V 50Ah AGM
Specifications
| Brand | FULLRIVER |
|---|---|
| Part number | DC50-12 |
| Voltage (V) | 12 |
| Capacity (C20) | 50Ah (c20) |
| Capacity (C5) | 41Ah (c5) |
| Technology | AGM |
| Length | 241.00 mm |
| Width | 175.00 mm |
| Height | 190.00 mm |
€216.90
VAT included
4,82/5★★★★★27 reviewsVerified purchases
- ★★★★★Marc Vargas:
Fueron de gran ayuda para instalar mi batería
- ★★★★★Jose Antonio Ramirez:
No tengo mas que palabras de agradecimiento, la batería me llego al día siguiente y me asesoraron gratis para la instalación
- ★★★★Victor Manuel IbaÑez:
Te atienden fenomenal
Fullriver DC50-12A 12V 50Ah 440A 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
Voltage
12 V
Capacity
50 Ah
Cold cranking
440 A
Dimensions
241×175×190 mm
Technology
AGM
Weight
18,5 kg
Model
Fullriver DC
Marine battery Fullriver DC50-12A DC 50Ah 440A 12V
12VVoltage
50AhCapacity
440ACold cranking
18.50kgWeight
The Fullriver DC50-12A with AGM technology is a marine battery with 50 Ah and 440 A of cold cranking current (EN) for motor and sailing boats, both for engine starting and onboard services. It measures 241 × 175 × 190 mm, the format sought by anyone replacing a 50 Ah battery in boats.
- Reinforced case against vibration and swell.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
- Tolerates the daily cycling of a boat in season.
- Powers onboard services: lights, sounder, GPS, fridge.
What the Fullriver DC50-12A is for
With 50 Ah, the Fullriver DC50-12A 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 a weight of 18.50 kg and AP terminals.
Size, terminals and hold-down of the Fullriver DC50-12A
The Fullriver DC50-12A is made in the 241 × 175 × 190 mm format and weighs 18.50 kg. It uses AP 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.
The Fullriver DC50-12A: DC range and AGM technology
The DC is the Fullriver range the DC50-12A 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.
In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.
Fullriver: the maker behind the DC50-12A
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. 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 DC50-12A comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.
Care and maintenance
As a service battery, avoid routine discharges below 50% to extend its cycle life. At the end of the season, charge the battery fully and, if possible, keep it on a charger over the winter lay-up.
Shipping, delivery and returns
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-DC50-12A
Data sheet
- Brand
- FULLRIVER
- Reference
- DC50-12A
- Model
- FULLRIVER DC
- Voltage (V)
- 12
- Length
- 241.00 mm
- Width
- 175.00 mm
- Height
- 190.00 mm
- Weight
- 18.50 Kgs
- Technology
- AGM
- Terminal type
- AP
- Cold cranking amps (EN)
- 440
- Capacity (C20)
- 50Ah (c20)
- Capacity (C5)
- 41Ah (c5)
Specific References
- MPN
- DC50-12
4,82/5
Verified purchasesLatest verified reviews
★★★★★Marc Vargas
25/05/2026Me asesoraron en la instalación
Fueron de gran ayuda para instalar mi batería
★★★★★Jose Antonio Ramirez
10/01/2026Gracias
No tengo mas que palabras de agradecimiento, la batería me llego al día siguiente y me asesoraron gratis para la instalación
★★★★★Victor Manuel IbaÑez
01/01/2026Magnifico servicio
Te atienden fenomenal
★★★★★Tomas Gutierrez
30/09/2025Asesoramiento gratis
Les llamé y me resolvieron varias dudas sobre la instalación de mi bateria
Comparison: Fullriver DC50-12A vs equivalents
The Fullriver DC50-12A is interchangeable with these equivalent references: FT610-47 (Fullriver).
| Product | Specifications | Technology | Price |
|---|---|---|---|
Fullriver
DC50-12A
This battery
|
12V 50Ah 440A | AGM | €216.90 |
Fullriver
FT610-47
|
12V 50Ah 610A | AGM | €268.30 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
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 DC50-12 an AGM battery and what are the benefits of AGM?
Yes. The DC50-12 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 do I change this battery step by step?
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.
What is the service life of the DC50-12 model?
Expected lifespan of the Fullriver DC50-12 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 size is this battery?
Dimensions (length × width × height) are 241×175×190 mm — also written as 241x175x190 mm and correspond to the European L2 case size — 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.
Will the Fullriver DC50-12 battery fit my boat?
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 DC50-12 typically fits a wide range of European vehicles thanks to its standard DIN case format.
What are the equivalents of the DC50-12 model?
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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