LawnMaster 48V Brushless Cordless 19-inch Lawn Mower — Dual 24V 4.0Ah Batteries, ~40 min Runtime, Mulch/Side-Discharge

The LawnMaster 48V MAX 19-inch Brushless Cordless Lawn Mower (CLMF4819X) is a battery-powered, 19" cutting deck mower built to deliver gas-free power, up to 40 minutes of runtime, and selectable mulching or side-discharge modes.

Compact yet capable, this walk-behind mower pairs a brushless motor spinning up to 3,600 RPM with two 24V MAX 4.0Ah lithium-ion batteries wired for 48V output. It eliminates gas, oil and spark plugs while offering intelligent power management via iPOWER technology, which balances performance and battery efficiency for everyday lawn care.

How much runtime and power can I expect from the CLMF4819X?

This model uses two 24V MAX 4.0Ah batteries to give you up to about 40 minutes of mowing per charge under typical conditions. The brushless motor delivers up to 3,600 RPM for steady cutting performance without the maintenance needs of a small gas engine.

• Dual 24V MAX battery configuration for combined 48V output
• Up to ~40 minutes runtime with both batteries installed
• Brushless motor rated to 3,600 RPM for consistent cutting
• No gas, oil changes, or spark-plug maintenance required

What cutting and discharge options does it offer?

The 19-inch steel deck gives a good balance of coverage and maneuverability for small to medium yards. You can choose between mulching grass clippings back into the lawn or side-discharge to remove clippings, depending on lawn conditions and finish preferences.

• 19-inch cutting deck for efficient passes in suburban yards
• 2-in-1 capability: mulching or side discharge
• Clean cut quality supported by the high-RPM brushless motor

How do I adjust the cutting height and handle different grass types?

Height adjustments are simple with six discrete cutting positions that let you go from a low, neat trim to a taller protective setting. The range spans from 1.4 inches up to 3.4 inches, so you can match common turf types and seasonal needs.

• Six cutting heights between 1.4" and 3.4" for varied turf preferences
• Quick lever or single-point adjustment (model-specific) for fast changes
• Settings suitable for finer lawns or higher summer growths

What efficiency or smart features help me mow longer on a charge?

iPOWER technology monitors and manages battery output to optimize energy use while maintaining cutting performance. The intelligent system helps extend runtime by automatically allocating power where and when it’s needed, reducing waste during lighter workloads.

• iPOWER energy management for balanced battery use
• Brushless motor increases efficiency and longevity compared with brushed motors
• Battery-powered design avoids fuel storage and routine engine upkeep

Who is this for? The LawnMaster CLMF4819X is designed for homeowners with small-to-medium lawns who want a low-maintenance, cordless alternative to gas mowers. It suits people who value quieter operation, easier seasonal storage, and the convenience of a 2-in-1 cut system with straightforward height adjustments. If you need a maneuverable, eco-friendlier option with solid run time and modern battery management, this mower fits well.