Fullriver DC145-12 · Marine battery 12V 145Ah 820A AGM

Battery FULLRIVER DC145-12 12V 145Ah
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  • Battery FULLRIVER DC145-12 12V 145Ah

Specifications

BrandFULLRIVER
Part numberDC145-12
Voltage (V)12
Capacity (C20)145Ah (c20)
Capacity (C5)122Ah (c5)
TechnologyAGM
Length341.00 mm
Width173.00 mm
Height287.00 mm
See the full specifications →
€511.90
VAT included
Quantity

  • 24-48h delivery
  • 14-day returns
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  • +11,800 reviews

Brand FULLRIVER Reference DC145-12

4,87· 14 reseñas
4,87/5★★★★★14 reviewsVerified purchases
  • ★★★★★Sergio Vazquez: Me ayudaron a elegir mi batería y, además, me ayudaron en la instalación
  • ★★★★★Jose Maria Garrido: Recomiendo hablar con ellos antes de realizar un pedido en otra web
  • ★★★★★Mateo Marquez: Pedí la batería en Viernes y el Lunes ya la tenía aquí
See all 14 reviews

Fullriver DC145-12 12V 145Ah 820A 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
145 Ah C20
Cold cranking
820 A EN-1
Dimensions
341×173×287 mm
Technology
AGM
Weight
43,8 kg
Model
DC Series
Logo Fullriver

Marine battery Fullriver DC145-12 DC 145Ah 820A 12V

12VVoltage
145AhCapacity
820ACold cranking
44.30kgWeight

The Fullriver DC145-12 marine battery offers 12 V, 145 Ah and 820 A of cold cranking current (EN) from the DC range with AGM technology, designed for motor and sailing boats, both for engine starting and onboard services. It replaces the original battery without adaptation in boats with a 341 × 173 × 287 mm format: same 145 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 DC145-12 is for

With 145 Ah, the Fullriver DC145-12 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 44.30 kg and M8 terminals.

Size, terminals and hold-down of the Fullriver DC145-12

In terms of format, the Fullriver DC145-12 measures 341 × 173 × 287 mm (length × width × height) and weighs 44.30 kg. It uses M8 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 DC145-12: DC range and AGM technology

Within the Fullriver catalogue, the DC series groups the references designed for this use. The DC145-12 is the 145 Ah model of that family, with the same performance as its siblings in other sizes.

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 DC145-12

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. All the Fullriver batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

Manufacturer's warranty

The Fullriver DC145-12 comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.

Usage and maintenance tips

At the end of the season, charge the battery fully and, if possible, keep it on a charger over the winter lay-up. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.

Shipping, delivery and returns

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.

BCOM-FULLRIVER-DC145-12

Data sheet

Brand
FULLRIVER
Reference
DC145-12
Model
FULLRIVER DC
Voltage (V)
12
Length
341.00 mm
Width
173.00 mm
Height
287.00 mm
Weight
44.30 Kgs
Technology
AGM
Terminal type
M8
Cold cranking amps (EN)
820
Capacity (C20)
145Ah (c20)
Capacity (C5)
122Ah (c5)

Specific References

MPN
DC145-12
4,87/5
★★★★★14 reviews
Verified purchases
Latest verified reviews
★★★★★Sergio Vazquez
31/05/2026
Gracias

Me ayudaron a elegir mi batería y, además, me ayudaron en la instalación

★★★★★Jose Maria Garrido
05/04/2026
Me atendieron muy bien

Recomiendo hablar con ellos antes de realizar un pedido en otra web

★★★★★Mateo Marquez
19/01/2026
Rápido y correcto

Pedí la batería en Viernes y el Lunes ya la tenía aquí

★★★★★Ignacio Prieto
10/01/2026
Recomiendo 100% esta web

Creo que esta web es la mejor para adquirir tu batería, muy recomdable

★★★★★Alex Prieto
06/01/2026
Gracias

Buen tiempo de entrega. Me urgía instalar la batería a mi coche. Gracias

★★★★★David Martinez
03/01/2026
Me atendieron super bien

Esta web tiene un gran servicio al cliente.

★★★★★Jesus Hernandez
02/01/2026
Ideal

Estupenda pagina web

★★★★★Mohamed Vazquez
28/12/2025
Muy buena ayuda con la instalación

Fueron de gran ayuda al momento de elegir la batería y de instalarla.

★★★★★Pedro Moya
14/11/2025
Muy útil su ayuda

Me ayudaron a elegir mi bateria y, además, me ayudaron en la instalación

Comparison: Fullriver DC145-12 vs equivalents — alternatives with the same dimensions, Ah and CCA

The Fullriver DC145-12 is interchangeable with these equivalent references: DC140-12 (Fullriver).

Product Specifications Technology Price
Fullriver DC145-12 Fullriver DC145-12 This battery ★ 4,9 12V 145Ah 820A AGM €511.90
Fullriver DC140-12 Fullriver DC140-12 ★ 4,8 12V 140Ah 795A AGM €505.70

Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.

Recommended accessories — complement the Fullriver DC145-12 with a charger or tester

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.

⏱ 20-30 min🛠 Tools: 10 mm or 13 mm wrench (depending on terminal) · Protective gloves
  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. 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 DC145-12 model AGM? What does this technology offer?

Yes. The DC145-12 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 DC145-12 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.

What is the service life of the DC145-12 model?

Expected lifespan of the Fullriver DC145-12 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 341×173×287 mm — also written as 341x173x287 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.

Will the Fullriver DC145-12 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 DC145-12 typically fits a wide range of European vehicles thanks to its standard DIN case format.

What are the equivalents of the DC145-12 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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