Fullriver FT438-U1 · 35Ah 12V 438A · leisure power for boats, caravans and campervans

Quick answer: What you are looking at: the Fullriver FT438-U1, a 35Ah 12V 438A battery for boats and motorhomes. Matching technology keeps the charging system happy.

Is the Fullriver FT438-U1 right for you?

Caravan owners often look up the Fullriver FT438-U1 during spring preparations. Dual-purpose batteries can start a small engine and run the cabin. Matching a bank is easier when every model keeps its own code.

For boats and motorhomes, 35Ah is on the compact side. 438A of cold cranking current is strong for a battery of this size.

Five checks for a perfect fit

• ✓ Outside dimensions are 196 × 131 × 192 mm. Run a tape measure over your tray or compartment, including the height under the bonnet or lid.
• ✓ Consider extra loads such as a tow bar when comparing 35Ah.
• ✓ Diesel engine? Its starting demand is high, so check that 438A covers what the maker recommends.

Specifications table

Questions and answers

What AGM means for you

Tightly packed plates and mats give glass-mat batteries a sturdy inner structure. Wheelchairs and scooters often use AGM for clean, sealed power. Replace an AGM battery whose case has bulged.

More options

Prefer to order now and fit at the weekend? baterias.online makes that easy. If in doubt about the fit, compare once more with the figures above.

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Getting the best from the Fullriver FT438-U1

Weekend sailors often find the engine battery fine and the domestic bank flat. Take the main leads from opposite corners of the bank so every battery shares the load. Swollen cases or a smell of acid in the locker call for immediate attention.