Lawn Mower AGM Battery Group U1 12V 33ah 350CCA 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, maintenance-free AGM (Absorbent Glass Mat) battery designed to start riding lawn mowers, garden tractors, and zero-turn mowers. It delivers 12 volts, 33 amp-hours (Ah), and 350 cold cranking amps (CCA) – enough power for most single-cylinder and small V-twin engines.

Fitment & Compatibility

Before buying, check these three things:

1. Group Size U1 – This battery fits standard U1 battery trays. Measure your current battery’s length (approx. 7.75″), width (5.15″), and height (6.25″) to confirm.
2. Terminal Layout – U1 batteries come in two terminal positions: “U1L” (positive on the left) and “U1R” (positive on the right). This battery is likely a standard U1 (positive on left), but verify your cable routing. If your machine uses a U1R, this won’t fit without extending cables.
3. Brand Fit – Listed as compatible with Craftsman, Cub Cadet, Toro, John Deere, Husqvarna, and most riding mowers that take a U1 battery. It’s an aftermarket replacement, not OEM, so check your owner’s manual for the required CCA (350 meets most needs, but some larger engines may need 400+).

Key Things to Know

• AGM vs. Flooded – AGM batteries are spill-proof, vibrate-resistant, and charge faster than traditional wet-cell batteries. No need to add water or check electrolyte levels.
• Installation – Simple swap: remove the old battery, clean the terminals, connect red (+), then black (-). No special tools required. Expect 15-30 minutes.
• Charging – Use a charger designed for AGM batteries (or a smart charger with an AGM mode). Overcharging with a standard lead-acid charger can damage it.
• Cold Cranking Amps – 350 CCA is adequate for most residential mowers, but if you have a larger engine (20+ HP) or mow in sub-freezing temps, consider a battery with 400+ CCA.

Should You Buy It

Buy this if you need a reliable, drop-in replacement for a Group U1 battery in a standard riding mower or garden tractor. It’s a great choice for users who want maintenance-free operation and strong starting power for typical residential use. Skip it if your machine requires a U1R terminal layout or a higher CCA rating for a large engine or extreme cold.