FT438-U1R Motorsports Battery AGM Group U1R 12V 35Ah 438CCA

FT438-U1R Motorsports AGM Battery Group U1R 12V 35Ah 438CCA — High-Performance Starting Power for Powersports & Specialty Vehicles

The Fullriver FT438-U1R is a premium Group U1R 12V 35Ah motorsports AGM battery engineered for high-performance powersport and specialty vehicle applications. Packing 438 CCA into a compact U1R form factor, it delivers exceptional cold-cranking power for ATVs, UTVs, personal watercraft, snowmobiles, and other demanding small-engine applications where reliable starts and vibration resistance are critical.

Built to Fullriver's FT motorsports series standards and backed by a 24-month warranty, the FT438-U1R offers significantly more capacity and cranking power than standard U1R batteries — making it the premium upgrade choice for serious riders.

Key Features

• 12V / 35Ah (20h rate) — high capacity for a U1R form factor, ideal for accessories and extended use
• 438 CCA (-18°C / 0°F) — powerful cold-cranking performance for reliable starts in Canadian winters
• 525 CA (0°C / 32°F) — strong cranking output across all temperatures
• 50-minute reserve capacity @ 25A — sustained power for onboard electronics and accessories
• Group U1R form factor — direct-fit for standard U1R battery trays
• AGM sealed construction — maintenance-free, spill-proof, vibration-resistant for motorsport use
• 24-month warranty — backed by Fullriver Battery

Specifications

• Voltage: 12V
• Capacity: 35Ah (20h rate)
• CCA (-18°C / 0°F): 438A
• CA (0°C / 32°F): 525A
• Reserve Capacity @ 25A: 50 minutes
• Chemistry: AGM (Pb) — Sealed Lead Acid
• Group Size: U1R
• Dimensions: 6.2" x 5.2" x height (157 x 131.1 mm)
• Weight: 12.1 kg
• Colour: Black / Grey
• Part/Model Number: FT438-U1R
• Brand: Fullriver Battery
• Warranty: 24 months

Ideal For

• ATVs and UTVs
• Personal watercraft (PWC) and jet skis
• Snowmobiles and winter powersport vehicles
• Lawn and garden tractors requiring high CCA
• Specialty and custom vehicles with U1R battery trays

Ships from Thunder Battery — Canada's trusted energy storage dealer.