Mighty Max Battery ML-U1 200CCA Battery for Toro Time Cutter SS4200 Zero-Turn Lawn Mower

What It Is

The Mighty Max Battery ML-U1 is a 200 Cold Cranking Amps (CCA), 12-volt, U1-size replacement battery designed for zero-turn mowers like the Toro Time Cutter SS4200. It powers the starter and electrical system, and it’s also compatible with many lawn tractors, ATVs, and small utility vehicles.

Fitment & Compatibility

• Direct fit for Toro Time Cutter SS4200: This battery matches the OEM battery tray size (U1 group: roughly 8.3” L x 5.1” W x 7.3” H) and terminal layout (top posts, positive left as you face the terminals).
• Check your model number: Works for SS4200 models with 42” or 50” decks, but confirm your mower’s specific year and serial number—some early SS4200 variants may have a different tray.
• OEM vs aftermarket: Mighty Max is an aftermarket replacement. It’s not an OEM Toro part, but it meets or exceeds the stock CCA (most OEM Toro U1 batteries are 170–200 CCA).
• Measure your tray: Before buying, measure the battery compartment depth and width to ensure the U1 size fits securely. If your mower uses a BCI Group 22NF or Group 24, this won’t work.

Key Things to Know

• Installation is straightforward: Remove the old battery (disconnect negative first), clean terminals, place the new battery, and reconnect (positive first). No special tools needed.
• CCA rating is sufficient: 200 CCA is adequate for the SS4200’s 22–24 HP engine in most climates, but if you mow in sub-freezing temps, consider a higher CCA battery (e.g., 250+).
• Maintenance-free design: Sealed AGM (Absorbent Glass Mat) battery—no water refilling or acid spills. It can be mounted in any orientation except upside down.
• Common gotcha: The included terminal hardware may be smaller than stock Toro bolts. Keep your old bolts if the new ones don’t fit the battery cables.

Should You Buy It

If you need a reliable, budget-friendly replacement for your Toro Time Cutter SS4200 and want a maintenance-free AGM battery that fits the stock tray, this is a solid pick. It’s not for extreme cold or high-demand commercial use, but for residential mowing, it delivers good value at $60.