Fullriver FT620-51 | yachts, cruisers, campervans and caravans | 55Ah 12V 620A

In short: One code, one battery: Fullriver FT620-51, 55Ah 12V 620A, for boats and motorhomes. Every figure that decides the fit is in the table below.

Buying the Fullriver FT620-51 online

Sailing yachts, motor cruisers and campervans all turn up among the users of the Fullriver FT620-51. Weighing 18 kg, it is worth planning how to lift it into a cramped locker. Comparing batteries online side by side helps balance capacity, weight and room in the locker.

55Ah makes it a smaller battery, good for light electrical loads. Cold starts are well covered: 620A is above the norm for its class.

Fullriver FT620-51: dimensions and ratings

Using it day to day: practical tips

Three nights at anchor with the fridge running show quickly what a battery bank can really do. Turn off the main isolator when leaving a boat for more than a few days. A bank that cannot get through one night with the fridge running needs replacing.

AGM: how it works

Glass-mat batteries are sealed, with small valves that only open if pressure builds up. Wheelchairs and scooters often use AGM for clean, sealed power. Too much voltage makes the valves vent gas that can never be replaced.

Will the Fullriver FT620-51 fit?

• ✓ Terminals: M8 + TP28 (SAE). Match them with your cable ends.
• ✓ Set your charger to AGM before the first charge.
• ✓ Dimensions to compare: 229 × 138 × 230 mm. Do not forget the base ledge, which the hold-down clamp grips on many vehicles.

Common questions about the Fullriver FT620-51

More options

Got the old battery's label in front of you? Compare it once more, then order online at baterias.online. Bookmark this page if you want the data sheet to hand while fitting.

• Other batteries for boats and motorhomes
• The complete Fullriver range