Motorcycle & ATV battery buying guide

Conventional flooded batteries are economical but may require filling, venting and maintenance. Factory-activated AGM batteries are sealed and vibration-resistant. Lithium powersport batteries are very light, but need compatible charging and careful cold-weather use.

• Match the complete model code, physical dimensions, terminal orientation and starting requirement—not voltage alone.
• Use a low-current smart maintainer during off-season storage. Choose a lithium-specific mode only when the battery maker approves it.
• Disconnect parasitic accessories where the owner’s manual allows, and inspect for swelling, leaks or damaged cables before spring start-up.