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The Duracell Ultra U1 is a sealed 12V battery rated at 350 cold cranking amps, built for lawn and garden equipment and small engine starting. It is a compact U1 case size, so it fits riding mowers, garden tractors, and electric kart lift stands that take that footprint. Buyers get a maintenance-free AGM-style battery from a name brand, but owner feedback is mixed and the rating sits near the middle. Compared with dedicated powersports and mower batteries, it is a straightforward fit-first choice rather than a high-capacity upgrade.
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Lowest price we've seen: $89.95 on Nov 11 at Over-Under Racing; highest $153.87 on Nov 3. Tracked across 3 stores since Nov 3.
Feedback is split. Some owners say it starts their mower reliably and fits as expected, while others report it failing within a season or two.
This is a Duracell Ultra heavy-duty battery in the U1 size. It is a 12V battery rated at 350 CCA (cold cranking amps).
It is intended for lawn and garden equipment. It is also used for electric kart lift stands.
