Mighty Max Battery ML-U1R-CCA 12V 200CCA Replacement Battery Compatible with Husqvarna YTH2454 Garden U1R Lawn Mower

What It Is

The Mighty Max Battery ML-U1R-CCA is a 12V, 200 CCA (cold cranking amps) sealed lead-acid battery designed to replace the OEM battery in Husqvarna YTH2454 lawn tractors and other U1R-size garden tractors. It powers the starter motor and electrical system for reliable engine startup.

Fitment & Compatibility

• Battery group size: U1R (positive terminal on the right when facing the battery). Measure your battery tray: this unit is approximately 7.7” L x 5.1” W x 6.2” H.
• Model check: Direct fit for Husqvarna YTH2454, but also fits many other brands (John Deere, Craftsman, Troy-Bilt) using a U1R battery. Verify your tractor’s battery group size in the owner’s manual or by measuring the existing battery.
• OEM vs aftermarket: This is an aftermarket battery, not Husqvarna OEM. It meets or exceeds OEM specs (200 CCA vs. typical OEM 175-190 CCA).
• Terminal type: Standard SAE posts (top terminals). Ensure your cables have ring terminals or clamps that fit 5/16” bolts.

Key Things to Know

• CCA rating: 200 CCA is sufficient for most residential mowers; cold starting may struggle below 20°F if the engine is oversized.
• Installation difficulty: Very easy – remove the hold-down bracket, disconnect negative then positive, swap, reconnect positive then negative. No special tools needed.
• Sealed battery: Maintenance-free – no water filling required. Spill-proof, can be mounted in any orientation except upside down.
• Common gotcha: The battery may arrive at 70-80% charge. Top off with a 2-amp trickle charger for 4-6 hours before first use for full performance.

Should You Buy It

If your Husqvarna YTH2454 or other U1R-equipped lawn tractor needs a reliable, low-maintenance battery at a budget-friendly price, this Mighty Max unit is a solid choice. It’s a direct fit, offers higher CCA than many OEM options, and is easy to install. Avoid if you need a deep-cycle battery for electric mowers or require a brand-specific warranty.