ML-U1-CCA -12 Volt, 200 CCA, Nut and Bolt (NB) Terminal, Rechargeable SLA AGM Battery

What It Is

The ML-U1-CCA is a 12-volt, 200 CCA (Cold Cranking Amps) rechargeable SLA AGM battery designed to power the starter motor on riding lawn mowers, zero-turn mowers, and tractors. It uses Nut and Bolt (NB) terminals for secure connections.

Fitment & Compatibility

Check these before buying:

• Terminal type: Needs Nut and Bolt (NB) terminals—not spade or post. Measure terminal spacing: center-to-center distance should be 6.75 inches or less.
• Physical size: Standard U1 group size: 7.75" L x 5.125" W x 6.25" H. Measure your battery tray to ensure it fits, especially in tight zero-turn mowers.
• CCA rating: 200 CCA is sufficient for most single-cylinder and small V-twin engines (up to ~25 HP). For larger engines (30+ HP), you may need a higher CCA battery.
• Brand fit: Fits most major brands (John Deere, Husqvarna, Craftsman, Toro, Cub Cadet) as a direct replacement for OEM U1 batteries. Not compatible with mowers requiring a larger group 24 or 35 battery.
• Polarity: Positive terminal is typically on the left when facing the battery. Verify cable orientation before purchase.

Key Things to Know

• Quality: AGM (Absorbent Glass Mat) design is spill-proof, vibration-resistant, and maintenance-free—better than flooded lead-acid for rough mower use.
• Installation difficulty: Easy (15–20 minutes). Disconnect negative terminal first, remove hold-down, swap battery, reconnect negative last. No electrolyte filling needed.
• Common gotchas: 200 CCA may struggle in very cold climates (below 20°F) or if your mower sits for months. Use a battery maintainer during off-season to prevent sulfation.
• Terminal hardware: NB terminals require 5/16" bolts (not included). Ensure you have or buy them separately—don’t reuse corroded bolts.

Should You Buy It

Buy it if you need a reliable, affordable drop-in replacement for a standard U1 battery in a riding mower or zero-turn with a small to mid-size engine. It’s a good value for the price, with solid ratings and AGM benefits. Skip it if you have a large engine, need higher cranking amps, or have a tight budget—check CCA and dimensions first.