DKLU1R Group U1 Lithium LiFePO4 Lawn Mower Battery, 12V 3Ah 450CCA Generators,Ride on Garden Tractor Starting Battery, Compatible with Craftsman, John Deere, Cub Cadet, Husqvarna, Troy-Bilt

What It Is

This is a lightweight, 12V 3Ah lithium LiFePO4 battery designed to replace standard lead-acid U1 group size batteries in ride-on garden tractors, lawn mowers, and generators. It delivers 450 cold cranking amps (CCA) for reliable starting power, even in cold weather.

Fitment & Compatibility

Before buying, confirm your machine uses a U1 group size battery (roughly 7.7" L x 5.1" W x 6.2" H). This battery is compatible with many Craftsman, John Deere, Cub Cadet, Husqvarna, and Troy-Bilt riding mowers, but always check your owner’s manual for the exact OEM battery part number. It will not fit machines requiring a larger group size (e.g., U1R, U2). Measure your battery tray dimensions and terminal orientation (positive on left or right) to ensure a snug fit. This is an aftermarket replacement, not an OEM Cub Cadet part.

Key Things to Know

• Lighter than lead-acid – Weighs about 2 lbs vs. 10+ lbs for a standard U1 battery, making installation easier.
• No maintenance – Sealed, spill-proof, and can be mounted in any position (but avoid direct heat sources).
• Charging caution – Requires a LiFePO4-compatible charger; a standard lead-acid charger may damage it. Some mower alternators may not fully charge it – check your system voltage (14.0–14.6V ideal).
• CCA rating note – 450 CCA is high for a 3Ah battery; real-world cold-start performance may be less than a lead-acid of similar CCA rating.

Should You Buy It

Buy this if you want a lightweight, maintenance-free battery for a U1-size riding mower or generator and you’re prepared to use a LiFePO4 charger. Skip it if you need a direct drop-in with no charging changes, or if your machine’s charging system isn’t compatible with lithium chemistries.