Fullriver DC79-12 · Marine battery 12V 79Ah 600A AGM
Specifications
| Brand | FULLRIVER |
|---|---|
| Part number | DC79-12 |
| Voltage (V) | 12 |
| Capacity (C20) | 79Ah (c20) |
| Capacity (C5) | 64Ah (c5) |
| Technology | AGM |
| Length | 307.00 mm |
| Width | 169.00 mm |
| Height | 215.00 mm |
€324.40
VAT included
4,71/5★★★★★13 reviewsVerified purchases
- ★★★★★Jose Maria Castro:
Fueron de gran ayuda para instalar mi batería
- ★★★★Antonio Perez:
Te atienden fenomenal
- ★★★★Ricardo Garrido:
Fueron de gran ayuda para instalar mi bateria
Fullriver DC79-12 12V 79Ah 600A is a marine battery, vibration- and deep-discharge resistant, suitable both for outboard engine starting and for onboard auxiliary services (navigation lights, GPS, sonar, fridge). Sealed and maintenance-free.
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
79 Ah
Cold cranking
600 A
Dimensions
307×169×215 mm
Technology
AGM
Weight
27 kg
Model
DC Series
Marine battery Fullriver DC79-12 DC 79Ah 600A 12V
12VVoltage
79AhCapacity
600ACold cranking
27kgWeight
With 79 Ah at 12 V and 600 A of cold cranking current (EN), the Fullriver DC79-12 from the DC range is built for motor and sailing boats, both for engine starting and onboard services. It measures 307 × 169 × 215 mm, the format sought by anyone replacing a 79 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.
Size, terminals and hold-down of the Fullriver DC79-12
The Fullriver DC79-12 is made in the 307 × 169 × 215 mm format and weighs 27 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.
What the Fullriver DC79-12 is for
On board, the Fullriver DC79-12 provides 79 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 27 kg and AP terminals.
The Fullriver DC79-12: DC range and AGM technology
The DC is the Fullriver range the DC79-12 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 (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.
What Fullriver does differently
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.
Official warranty
The Fullriver DC79-12 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
As a service battery, avoid routine discharges below 50% to extend its cycle life. Protect the terminals with dielectric grease and check the fixing: vibration and swell loosen connections.
Delivery times 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-DC79-12
Data sheet
- Brand
- FULLRIVER
- Reference
- DC79-12
- Model
- FULLRIVER DC
- Voltage (V)
- 12
- Length
- 307.00 mm
- Width
- 169.00 mm
- Height
- 215.00 mm
- Weight
- 27 Kgs
- Technology
- AGM
- Terminal type
- AP
- Cold cranking amps (EN)
- 600
- Capacity (C20)
- 79Ah (c20)
- Capacity (C5)
- 64Ah (c5)
Specific References
- MPN
- DC79-12
4,71/5
Verified purchasesLatest verified reviews
★★★★★Jose Maria Castro
19/06/2026Me ayudaron a poner la batería
Fueron de gran ayuda para instalar mi batería
★★★★★Antonio Perez
16/01/2026Servicio ideal
Te atienden fenomenal
★★★★★Ricardo Garrido
16/10/2025Muchas gracias por la ayuda
Fueron de gran ayuda para instalar mi 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 DC79-12 an AGM battery and what are the benefits of AGM?
Yes. The DC79-12 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 DC79-12 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 DC79-12 battery last?
Expected lifespan of the Fullriver DC79-12 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 DC79-12 battery?
Dimensions (length × width × height) are 307×169×215 mm — also written as 307x169x215 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 DC79-12 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 DC79-12 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Fullriver DC79-12?
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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