Fullriver DC40-12 · 40Ah 12V 275A · leisure power for boats, caravans and campervans

In short: The battery on this page is the Fullriver DC40-12, aimed at boats and motorhomes. Terminal position is the detail people most often forget.

Getting the best from the Fullriver DC40-12

Three nights at anchor with the fridge running show quickly what a battery bank can really do. Ventilate the battery locker, even with sealed batteries. Corroded terminals in a damp locker cause many apparent faults.

Technical figures at a glance

About the technology: AGM

Lead plates in AGM batteries are often slightly thinner than in flooded types. Many modern cars with brake energy recovery were designed around AGM from the start. Leaving a glass-mat battery flat for weeks invites sulphation.

Questions buyers ask about the Fullriver DC40-12

Fullriver DC40-12: what it is and who it suits

Cruising yachts and touring motorhomes often share the same battery code: Fullriver DC40-12. Identical batteries share the load evenly in a bank. Matching a whole bank is easier at baterias.online, where each model keeps its exact code.

Compact by the standards of boats and motorhomes, with 40Ah.

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Keep the code DC40-12 handy for next time: it makes reordering at baterias.online quick. Note the fitting date somewhere you will find it again.

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Five checks for a perfect fit

• ✓ 40Ah sets how long the battery can power things with the engine off.
• ✓ EN cranking amps of 275A. If you are unsure of your requirement, the vehicle handbook usually states it.
• ✓ Terminal type: M6. Make sure your cable clamps or connectors suit it before fitting.