Fullriver

Fullriver DC40-12 · Boat battery 12V 40Ah 275A

Reference: BOL-FULLRIVER-DC40-12

Fullriver DC40-12: boat battery with 12 V, 40 Ah and 275 A cold cranking current, measuring 198 × 166 × 174 mm.

Who the Fullriver DC40-12 is for

The Fullriver DC40-12 is a battery for boats: engine starting or on-board service, depending on its design, with resistance to damp and hull vibration. Check whether your boat needs starting, service or a dual-purpose battery before choosing.

The DC40-12 belongs to the Fullriver DC Series range. See all Fullriver batteries

Equivalents and alternatives to the Fullriver DC40-12

As the DC40-12 is an AGM battery, we only list other AGM batteries with its dimensions and polarity: neither an EFB nor a conventional battery can replace it.

ModelTechnologyCapacityCold cranking (EN)Dimensions (mm)
Fullriver DC38-12AGM38 Ah265 A198 × 166 × 171

Fullriver DC40-12 vs DC38-12 and DC50-12B

The real differences between the DC40-12 and the closest Fullriver models:

ModelCapacityCold cranking (EN)Dimensions (mm)Weight
Fullriver DC40-12 (this one)40 Ah275 A198 × 166 × 17413.4 kg
Fullriver DC38-1238 Ah265 A198 × 166 × 17113.5 kg
Fullriver DC50-12B50 Ah270 A198 × 166 × 17114.9 kg
  • Fullriver DC38-12: 2 Ah less, 10 A less cranking power, a different case (198 × 166 × 171 mm).
  • Fullriver DC50-12B: 10 Ah more, 5 A less cranking power, a different case (198 × 166 × 171 mm).

Inside the DC40-12: AGM technology

The DC40-12 is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the DC40-12 can be fitted in the boot or under a seat with no risk of spills.

What to look at before buying the DC40-12

  • The DC40-12 needs 198 × 166 × 174 mm of space: measure it with the hold-down clamp in place.
  • With 40 Ah, the DC40-12 replaces an original battery of that capacity or slightly less.
  • Cold cranking: 275 A (EN), equal to or higher than the original.

Fullriver DC40-12 codes and part numbers

Look for any of these DC40-12 codes on your current battery or in the manufacturer's catalogue:

Commercial referenceDC40-12
Terminal typeM6
Not to be confused withFullriver DCG40-12 (40 Ah), Fullriver DC10-12 (10 Ah), Fullriver DC140-12 (140 Ah, 795 A)

Frequently asked questions about the Fullriver DC40-12

Fullriver DC40-12 or DC38-12?

Compared with the DC40-12, the Fullriver DC38-12 has 2 Ah less and 10 A less cranking power. The DC40-12 cranks harder; the DC38-12 is only a good option if your original battery says 265 A or less. Mind the space: the DC38-12 measures 198 × 166 × 171 mm.

How much does the Fullriver DC40-12 weigh?

The DC40-12 weighs 13.4 kg. For reference, the Fullriver DC38-12 (38 Ah) weighs 13.5 kg.

Which battery is equivalent to the Fullriver DC40-12?

Only other AGM batteries with its dimensions and polarity: Fullriver DC38-12. Neither an EFB nor a conventional battery replaces the DC40-12.

Keep comparing: alternatives to the DC40-12

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