Fullriver DC26-12B · Marine battery 12V 26Ah 160A AGM
Specifications
| Brand | FULLRIVER |
|---|---|
| Part number | DC26-12B |
| Voltage (V) | 12 |
| Capacity (C20) | 26Ah (c20) |
| Capacity (C5) | 21 3Ah (c5) |
| Cold cranking amps (EN) | 160 |
| Technology | AGM |
| Length | 165.00 mm |
| Width | 176.00 mm |
Fullriver DC26-12B 12V 26Ah 160A 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
Where it fits: the Fullriver DC26-12B is one of our boat batteries, belongs to our Fullriver batteries and by capacity it sits among our 26Ah batteries.

Marine battery Fullriver DC26-12B DC 26Ah 160A 12V
The Fullriver DC26-12B marine battery offers 12 V, 26 Ah and 160 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 measures 165 × 176 × 125 mm, the format sought by anyone replacing a 26 Ah battery in boats.
- Tolerates the daily cycling of a boat in season.
- Powers onboard services: lights, sounder, GPS, fridge.
- Reinforced case against vibration and swell.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
What the Fullriver DC26-12B is for
The Fullriver DC26-12B is designed for motor and sailing boats, both for engine starting and onboard services. If it is your starter battery, run the services from a separate battery; if it is a service battery, avoid routinely discharging it beyond 50%. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 9.40 kg and M6 terminals.
Dimensions, polarity and mounting
It has external dimensions of 165 × 176 × 125 mm and weighs 9.40 kg. It uses M6 terminals, the system that anchors and connects it in the vehicle. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters.
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. We guarantee that every Fullriver arrives new, charged and with the manufacturer's full warranty.
The Fullriver DC26-12B: DC range and AGM technology
Within the Fullriver catalogue, the DC series groups the references designed for this use. The DC26-12B is the 26 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.
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.
Manufacturer's warranty
The Fullriver DC26-12B comes with the manufacturer's official warranty against manufacturing defects. Deep discharge from winter lay-up without charging is not covered.
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.
Data sheet
-
BrandFULLRIVER
-
ReferenceDC26-12B
-
ModelFULLRIVER DC
-
Voltage (V)12
-
Length165.00 mm
-
Width176.00 mm
-
Height125.00 mm
-
Weight9.4 Kgs
-
TechnologyAGM
-
Terminal typeM6
-
Cold cranking amps (EN)160
-
Capacity (C20)26Ah (c20)
-
Capacity (C5)21 3Ah (c5)
Specific References
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MPNDC26-12B
Comparison: Fullriver DC26-12B vs equivalents
The Fullriver DC26-12B is interchangeable with these equivalent references: DC26-12A (Fullriver).
| Product | Specifications | Technology | Price |
|---|---|---|---|
|
|
12V 26Ah 160A | AGM | €131.10 |
|
|
12V 26Ah 160A | AGM | €120.70 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
Other 26Ah batteries
We stock 13 models of 26 Ah to compare by price, technology and cold cranking: see all 26Ah batteries. Same size (166 × 126 × 174 mm): batteries of 166 × 126 × 174 mm.
Recommended accessories
Frequently asked questions
Is the Fullriver DC26-12B an AGM battery and what are the benefits of AGM?
Yes. The DC26-12B 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.
In what position can it be installed on the boat?
Being AGM, it is sealed and does not spill: it can be mounted tilted (never upside down) and copes well with vibration and wave impacts. Secure it firmly and keep the terminals away from water.
What are the measurements of the DC26-12B model?
Dimensions (length × width × height) are 166×126×174 mm — also written as 166x126x174 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.
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