Fullriver DCG51-12 · Wheelchair battery 12V 51Ah AGM
Wheelchair battery Fullriver DCG51-12 12V 51Ah AGM images
Specifications
| Brand | FULLRIVER |
|---|---|
| Part number | DCG51-12 |
| Voltage (V) | 12 |
| Capacity (C20) | 51Ah (c20) |
| Capacity (C5) | 43Ah (c5) |
| Technology | AGM |
| Length | 229.00 mm |
| Width | 138.00 mm |
| Height | 208.00 mm |
Fullriver DCG51-12 12V 51Ah is a deep-cycle battery for wheelchairs and mobility scooters, optimised to be discharged and recharged daily down to 80 % DOD without losing range.
Why this wheelchair battery?
- Daily cycling without wearhandles deep discharges without losing capacity
- Sealed AGM/GELno maintenance, no risk of spills
- Thousands of useful cyclesover its full lifetime
Marine battery Fullriver DCG51-12 DCG 51Ah 12V
The Fullriver DCG51-12 with AGM technology is a marine battery with 51 Ah for motor and sailing boats, both for engine starting and onboard services. It replaces the original battery without adaptation in boats with a 229 × 138 × 208 mm format: same 51 Ah capacity.
In short: the Fullriver DCG51-12 (51 Ah, 229 × 138 × 212 mm). Verified equivalent alternatives: Fullriver HC55 and MK Powered M55-12 SLD M.
- Powers onboard services: lights, sounder, GPS, fridge.
- Tolerates the daily cycling of a boat in season.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
- Reinforced case against vibration and swell.
What the Fullriver DCG51-12 is for
On board, the Fullriver DCG51-12 provides 51 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 17.10 kg and M6 terminals.
The Fullriver DCG51-12: DCG range and AGM technology
The DCG51-12 is part of the Fullriver DCG range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.
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.
Dimensions, polarity and mounting
It has external dimensions of 229 × 138 × 208 mm and weighs 17.10 kg. It uses M6 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. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.
How to make it last longer
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.
Official warranty
The Fullriver DCG51-12 comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.
Shipping, delivery and returns
Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.
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ReferenceBCOM-FULLRIVER-DCG51-12
Data sheet
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BrandFULLRIVER
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ReferenceDCG51-12
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ModelFULLRIVER DCG
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Voltage (V)12
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Length229.00 mm
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Width138.00 mm
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Height208.00 mm
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Weight17.1 Kgs
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TechnologyAGM
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Terminal typeM6
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Capacity (C20)51Ah (c20)
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Capacity (C5)43Ah (c5)
Specific References
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MPNDCG51-12
Comparison: Fullriver DCG51-12 vs equivalents
The Fullriver DCG51-12 is interchangeable with these equivalent references: HC55 (Fullriver), M55-12 SLD M (MK Powered), ES55-12 (Kronobat), BATTERY-12LCP-56 (Q-battery).
| Product | Specifications | Technology | Price |
|---|---|---|---|
Fullriver
DCG51-12
This battery
|
12V 51Ah | AGM | €239.40 |
Fullriver
HC55
|
12V 55Ah 620A | AGM | €361.80 |
MK Powered
M55-12 SLD M
|
12V 55Ah | AGM | €199.10 |
Kronobat
ES55-12
|
12V 55Ah | AGM | €194.95 |
Q-battery
BATTERY-12LCP-56
|
12V 56Ah | AGM | €235.90 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Recommended accessories
Frequently asked questions
Is this battery AGM? What is it for?
Yes. The DCG51-12 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 DCG51-12 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 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 DCG51-12 battery last?
Expected lifespan of the Fullriver DCG51-12 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 DCG51-12 battery?
Dimensions (length × width × height) are 229×138×212 mm — also written as 229x138x212 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 DCG51-12 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 DCG51-12 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which interchangeable batteries are there for this one?
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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