Professional Cordless Mowing for Medium to Large Lawns

The STIHL RMA 448 18″ Cordless Lawn Mower (Tool Only) stands out as a feature-packed machine designed to make lawn care both efficient and comfortable. With an 18-inch (46 cm) cutting width, it is particularly suited to medium and larger domestic lawns—offering excellent coverage while remaining agile for precise mowing tasks. Powered by the STIHL ALLPRO/AP battery system (batteries and charger sold separately), the RMA 448 delivers quiet, powerful, and consistent performance, making it ideal for residential areas or situations where minimal disturbance is required.

The mower features a robust, double-layered polymer deck that is lightweight, UV-resistant, rust-proof, and engineered for durability. It comes equipped with a Vario self-propelled drive, allowing users to select the most comfortable speed (between 2.0 – 4.5 km/h) to suit mowing conditions and personal preferences. The mower’s smooth-running wheels and central height adjustment (ranging from 20 mm to 100 mm) enable ergonomic operation and flexibility for various grass types and conditions.

Four Mowing Modes with Practical Collection System

The RMA 448 supports four mowing methods, adapting to different lawn care regimes:

• Classic collection via the 52-litre grass catcher box with integrated fill-level indicator.
• Cut & drop by removing the grass catcher.
• Side discharge, facilitated by a flap integrated into the deck.
• Mulching (multi-blade and mulching accessory required; mulching kit not included).

The ergonomically designed, folding grass box is easy to empty, and the folding handlebar allows compact storage and easy access. For safety in adverse weather, the mower is IPX4 splash-water protected, supporting dependable use even in wet British conditions.

Cordless Technology and Digital Convenience

Unique to STIHL, the mower utilises intelligent battery management with sequential battery discharge—automatically switching to a second battery when the first one is empty, ensuring less downtime. Constant power technology delivers consistent performance regardless of battery charge. Key features include Power Boost for demanding applications, Eco Mode for maximising battery duration, and a digital user interface (HMI) displaying battery status, selected modes, and system health feedback—all directly accessible from the handlebar.

Typical Use Recommendations

Based on manufacturer data, the mower is recommended for lawns up to 600 m² (using the recommended AP 300 P battery), and up to 1,200 m² with two batteries operated in sequence. This flexibility makes it well-suited for UK homeowners maintaining larger gardens who value cordless convenience and an ergonomic build.

Why Buy Your STIHL Cordless Lawn Mower from Sims Garden Machinery?

Sims Garden Machinery is an established, authorised UK STIHL dealer with over 100 years of horticultural machinery expertise. Visit our Stratford-upon-Avon showroom for dedicated advice from trained sales staff, and take advantage of our fully-equipped workshop with STIHL-trained mechanics for ongoing service and repairs. Each machine purchased locally receives a free Pre-Delivery Inspection (PDI), local delivery, and an in-person handover demonstration, ensuring your mower is set up correctly and ready for use. This comprehensive service and aftersales support make Sims Garden Machinery a trusted choice for lawn mowers in Warwickshire and nationwide beyond simple box-shifting.

Battery and Charging Information

This machine is supplied as a tool only; battery and charger are not included. The STIHL AP battery system allows flexible runtime options and is compatible with a range of other STIHL cordless tools. Please refer to the recommended batteries for maximum efficiency.

If you require further information about compatible accessories such as the mulching kit, please contact Sims Garden Machinery.