Fullriver DCG100-12 · Marine battery 12V 100Ah AGM
Marine battery Fullriver DCG100-12 12V 100Ah AGM images
Specifications
| Brand | FULLRIVER |
|---|---|
| Part number | DCG100-12 |
| Voltage (V) | 12 |
| Capacity (C20) | 100Ah (c20) |
| Capacity (C5) | 84Ah (c5) |
| Technology | AGM |
| Length | 329.00 mm |
| Width | 171.00 mm |
| Height | 227.00 mm |
Fullriver DCG100-12 12V 100Ah 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
Marine battery Fullriver DCG100-12 DCG 100Ah 12V
The Fullriver DCG100-12 marine battery offers 12 V, 100 Ah from the DCG range with AGM technology, designed for motor and sailing boats, both for engine starting and onboard services. Its 329 × 171 × 227 mm make it the exact replacement for the 100 Ah battery fitted as standard to many boats.
- Ready for starting outboard and inboard engines.
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Resistant to humidity and salt air.
- Sealed: no spills or gases in the locker.
What the Fullriver DCG100-12 is for
On board, the Fullriver DCG100-12 provides 100 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 31.70 kg and AP terminals.
Dimensions, polarity and mounting
The Fullriver DCG100-12 is made in the 329 × 171 × 227 mm format and weighs 31.70 kg. It uses AP 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.
The Fullriver DCG100-12: DCG range and AGM technology
Within the Fullriver catalogue, the DCG series groups the references designed for this use. The DCG100-12 is the 100 Ah model of that family, with the same performance as its siblings in other sizes.
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.
Why choose Fullriver batteries
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. We guarantee that every Fullriver arrives new, charged and with the manufacturer's full warranty.
Manufacturer's warranty
The Fullriver DCG100-12 comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.
How to make it last longer
Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. Protect the terminals with dielectric grease and check the fixing: vibration and swell loosen connections.
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.
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ReferenceBCOM-FULLRIVER-DCG100-12
Data sheet
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BrandFULLRIVER
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ReferenceDCG100-12
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ModelFULLRIVER DCG
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Voltage (V)12
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Length329.00 mm
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Width171.00 mm
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Height227.00 mm
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Weight31.7 Kgs
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TechnologyAGM
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Terminal typeAP
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Capacity (C20)100Ah (c20)
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Capacity (C5)84Ah (c5)
Specific References
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MPNDCG100-12
Recommended accessories
Frequently asked questions
Is the Fullriver DCG100-12 an AGM battery and what are the benefits of AGM?
Yes. The DCG100-12 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 fit the DCG100-12 model in my boat?
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 our blog. 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 DCG100-12 battery last?
Expected lifespan of the Fullriver DCG100-12 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 DCG100-12 battery?
Dimensions (length × width × height) are 329×171×227 mm — also written as 329x171x227 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 DCG100-12 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 DCG100-12 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Fullriver DCG100-12?
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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