CUB CADET 490-280-F017 Battery 210cca 11AHR Ultima ZT1 ZT2 ZTS1 ZTS2 ZTX4 ZTX5 ZTX6 725P17335

What It Is

This is a 12-volt, 210 cold-cranking-amp (CCA), 11 amp-hour (AH) sealed lead-acid battery designed specifically for Cub Cadet ZT1, ZT2, ZTS1, ZTS2, ZTX4, ZTX5, and ZTX6 zero-turn mowers. It powers the starter and engine ignition, and runs the mower’s electrical accessories.

Fitment & Compatibility

Before buying, confirm your mower is one of the listed ZT-series models (Ultima ZT1/ZT2/ZTS1/ZTS2/ZTX4/ZTX5/ZTX6). Check the OEM part number on your current battery—this is the direct replacement for Cub Cadet part 725P17335. Measure your battery tray: this battery is roughly 7.5” L x 5.1” W x 6.2” H. If your tray is smaller or has different terminal orientation (left positive vs. right positive), it won’t fit. Also verify your mower uses a standard SAE post terminal (not side-post or stud-style). Aftermarket batteries with similar specs may work, but the mounting bracket and hold-down may differ.

Key Things to Know

• Quality & Life: Sealed AGM (absorbent glass mat) design resists vibration and leaks, but expect 2-4 seasons depending on storage and charging habits. It’s a maintenance-free battery—no water refills needed.
• Installation Difficulty: Easy—disconnect negative first, remove hold-down, swap cables (note: positive cable is often red, negative black). Use a battery terminal puller if cables are corroded. Torque terminals to 50-70 in-lbs; overtightening cracks the case.
• Common Gotchas: This battery has a lower CCA (210) than some generic replacements (often 230-260). If your mower struggles in cold weather or has a high-compression engine, the lower CCA may cause slow cranking. Also, ensure your charger supports AGM batteries—a standard automotive charger can overcharge and damage it.
• Storage: Store fully charged; a trickle charger with AGM mode extends life. Letting it drain below 10.5V can permanently kill it.

Should You Buy It

Buy this if you want a guaranteed OEM fit for your Cub Cadet ZT-series zero-turn and don’t want to measure or modify the tray. It’s a solid, reliable replacement for typical homeowner use in moderate climates. If you need higher cranking power for cold starts or want a longer warranty, consider an aftermarket battery with 230+ CCA and a 3-year warranty—but verify dimensions and terminal orientation first.