Fullriver

Fullriver FT825-78 · Boat battery 12V 65Ah 825A

Reference: BOL-FULLRIVER-FT825-78

Fullriver FT825-78: boat battery with 12 V, 65 Ah and 825 A cold cranking current, measuring 261 × 172 × 211 mm.

The Fullriver FT825-78 at a glance

The Fullriver FT825-78 is a battery for boats: engine starting or on-board service, depending on its design, with resistance to damp and hull vibration. With 65 Ah, the FT825-78 suits boats that had a battery of that capacity.

The FT825-78 belongs to the Fullriver Full Throttle Series range. More Fullriver batteries

Equivalents and alternatives to the Fullriver FT825-78

As the FT825-78 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 FT825-34AGM65 Ah825 A261 × 172 × 208

Fullriver FT825-78 vs DC70-12 and FFD80-12

What sets the FT825-78 apart from its neighbours in the Fullriver range:

ModelCapacityCold cranking (EN)Dimensions (mm)Weight
Fullriver FT825-78 (this one)65 Ah825 A261 × 172 × 21121.1 kg
Fullriver DC70-1270 Ah450 A260 × 169 × 21524 kg
Fullriver FFD80-1280 Ah530 A260 × 169 × 21523.1 kg
  • Fullriver DC70-12: 5 Ah more, 375 A less cranking power, a different case (260 × 169 × 215 mm).
  • Fullriver FFD80-12: 15 Ah more, 295 A less cranking power, a different case (260 × 169 × 215 mm).

AGM technology in the FT825-78

The FT825-78 is AGM: the electrolyte is absorbed in glass fibre mats, so it is sealed and spill-proof. Being sealed, the FT825-78 can be fitted in the boot or under a seat with no risk of spills.

What to look at before buying the FT825-78

  • The FT825-78 needs 261 × 172 × 211 mm of space: measure it with the hold-down clamp in place.
  • With 65 Ah, the FT825-78 replaces an original battery of that capacity or slightly less.
  • Cold cranking: 825 A (EN), equal to or higher than the original.

Fullriver FT825-78 codes and part numbers

Look for any of these FT825-78 codes on your current battery or in the manufacturer's catalogue:

Commercial referenceFT825-78
Terminal typeM8 + TP29 + FR45

Frequently asked questions about the Fullriver FT825-78

Fullriver FT825-78 or DC70-12?

Compared with the FT825-78, the Fullriver DC70-12 has 5 Ah more and 375 A less cranking power. The FT825-78 cranks harder; the DC70-12 is only a good option if your original battery says 450 A or less. Mind the space: the DC70-12 measures 260 × 169 × 215 mm.

How much does the Fullriver FT825-78 weigh?

The FT825-78 weighs 21.1 kg. For reference, the Fullriver DC70-12 (70 Ah) weighs 24 kg.

Which battery is equivalent to the Fullriver FT825-78?

Only other AGM batteries with its dimensions and polarity: Fullriver FT825-34. Neither an EFB nor a conventional battery replaces the FT825-78.

Can the Fullriver FT825-78 be used for starting and service at the same time?

Only if it is dual purpose. A starter battery is not built for deep discharge, and a service battery does not deliver the current peak the engine asks for.

Other options if you are unsure about the FT825-78

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