Lawn Mower AGM Battery Group U1 12V 28ah 320CCA Rechargeable SLA Starting Garden Batteries for Tractors, Lawn and Riding Mowers, Compatible with Craftsman, Cub Cadet, and Toro

What It Is

This is a sealed lead-acid (SLA) AGM battery (Group U1, 12V, 28Ah, 320 CCA) designed to start riding mowers, lawn tractors, and zero-turn mowers. It replaces OEM batteries in Craftsman, Cub Cadet, and Toro machines, and works for any U1-compatible garden tractor.

Fitment & Compatibility

Before buying, check three things:

• Group size: Must be U1 (roughly 7.7" L x 5.1" W x 6.2" H). Measure your battery tray to confirm it fits.
• Terminal layout: U1 batteries come with two common terminal positions (left positive or right positive). Verify your cables reach without stretching. This battery uses standard U1 posts (top-mount, 1/4" studs).
• CCA vs. your engine: 320 CCA is sufficient for most single-cylinder lawn tractor engines (12-20 HP). For larger twin-cylinder or zero-turn mowers (25+ HP), you may need 400+ CCA. Check your owner’s manual minimum CCA rating.

It’s an aftermarket replacement, not OEM, but fits any machine that takes a U1 group battery—Craftsman LT1000, Cub Cadet XT1, Toro TimeCutter, etc.

Key Things to Know

• AGM vs. flooded: AGM is spill-proof, vibration-resistant, and maintenance-free. No water refill needed. Install it upright or on its side (check manual).
• Installation difficulty: Easy—disconnect negative first, swap cables, reconnect positive last. Use terminal protectors to prevent corrosion.
• Cold weather: 320 CCA means reliable starts down to about 0°F, but cranking power drops in extreme cold. If you store mower in unheated shed, consider a trickle charger.
• Lifespan: Expect 3-5 years with proper charging. Never drain below 50% charge; use a maintainer during off-season.

Should You Buy It

If you need a direct-fit, no-maintenance U1 battery for a standard riding mower and want reliable cold-cranking power without paying OEM markup, this is a solid choice. It’s not for high-CCA applications (big twin engines or commercial zero-turns) but handles most residential tractors well. At $65 with a 5-star rating, it’s a safe, budget-friendly swap.