Original price was: £779.00.£729.00Current price is: £729.00. inc. VAT
The STIHL RMA 453.3 PV is a feature-rich 20″ cordless lawn mower designed for large domestic lawns. With Vario self-drive and 4-in-1 mowing functions, it offers quiet, powerful, and flexible lawn care. Part of the professional AP battery system.
The STIHL RMA 453.3 PV is a high-performance cordless lawn mower from the AP System range, expertly designed for gardeners managing large lawns. This quiet yet powerful mower combines a wide 51cm (20″) cutting width with a variable speed drive, making it an ideal choice for efficient and comfortable lawn maintenance. Please note, this is a tool-only model; batteries and a charger must be purchased separately if not already owned.
The RMA 453.3 PV offers exceptional flexibility with four distinct mowing methods, requiring no additional tools to switch between them. Users can choose to cut and collect with the 55-litre grass catcher box, cut and drop by removing the box, use the integrated side discharge flap, or mulch finely with the multi-blade and mulching attachment to return nutrients to the lawn.
Engineered for endurance, this mower features sequential battery discharge. It holds two AP batteries and automatically switches from the first to the second when depleted, ensuring longer, uninterrupted working times. With two recommended AP 300 S batteries, it can cover an area of up to 900m². The mower also includes an Eco mode to conserve energy, and intelligent electronics that maintain constant power output as the battery discharges. The POWER BOOST function delivers maximum performance when tackling tougher conditions.
Operator comfort is prioritised with a height-adjustable mono-comfort handlebar, which also folds for compact storage and provides easy access to the grass box. A built-in digital interface on the handlebar displays key information like battery charge level and the selected mowing mode. Smooth-running wheels ensure effortless manoeuvrability across the lawn, while the central lever allows for quick cutting height adjustments between 20mm and 100mm.
The mower is built with a rugged, double-layered polymer deck that is lightweight, rust-proof, and UV-resistant for long-lasting stability and performance. Its IPX4 rating certifies it is protected against splashing water, making it suitable for use in typical British weather conditions.
| Battery Model | Max Area (m²) |
|---|---|
| AP 200 | up to 300 m² |
| AP 200 S | up to 300 m² |
| AP 300 S | up to 450 m² |
| AP 500 S | up to 540 m² |
Note: The stated area per charge is an estimate and can vary based on lawn conditions and operating mode. Performance is doubled when using two batteries.
As an established, authorised UK dealer for STIHL, Sims Garden Machinery has over 100 years of experience. When you purchase from us, you’re not just buying a box. Our trained sales staff are on hand in our Stratford-upon-Avon showroom to help you choose the right machine. For local customers, every mower comes with a free Pre-Delivery Inspection (PDI) by our trained mechanics, ensuring it’s built, tested, and ready to use. We also offer complimentary local delivery and a full handover demonstration to ensure you’re confident from the very first cut. This level of service and aftersales support from our on-site workshop is what sets us apart.
| Battery System | AP System |
| Drive Speed | 2.0 – 4.5 km/h (Variable) |
| Recommended Battery | AP 300 S |
| Device Weight (without battery) | 29 kg |
| Cutting Width | 51 cm / 20″ |
| Cutting Height | 20 – 100 mm |
| Grass Catcher Box Volume | 55 l |
| Max. Area per charge (AP 300 S) | 450 m² |
| Max. Area per charge (AP 500 S) | 540 m² |
| IP Rating | IPX4 |
| Sound Power Level (LWA) | 94 dB(A) |
| Vibration (ahw) | 1.80 m/s² |
We are authorised dealers for leading brands, meaning genuine parts, manufacturer-approved training, and warranty support you can rely on.
No call centres. No ticket systems. Just a knowledgeable local team you can speak to when you need help.
Our team are trained mechanics and product specialists, so you get honest, practical advice based on how you’ll actually use the machine.
We’re a long-standing independent dealer with deep roots in the local area — built on reputation, repeat customers, and word of mouth.
This lawn mower is ideal for gardeners with medium to large-sized lawns, capable of covering up to 900m² with two AP 300 S batteries. Its variable speed self-propulsion and quiet operation make it perfect for those who want a powerful, low-noise mowing solution without the hassle of petrol engines.
The RMA 453.3 PV is part of the STIHL AP professional battery system and is sold as a tool-only unit. It requires a compatible STIHL AP battery (such as the recommended AP 300 S) and a charger (e.g., AL 301 or AL 500), which must be purchased separately.
The mower has two battery slots. The sequential discharge feature means it draws power from one battery until it is fully depleted, and then automatically switches over to the second battery. This allows for longer, uninterrupted mowing sessions without needing to stop and manually swap batteries.
Yes, the STIHL RMA 453.3 PV has an IPX4 rating, which certifies it is protected against splashing water from all sides. This makes it suitable for use in damp grass or light rain, providing greater flexibility for your gardening schedule.
| Dimensions | 120 × 54 × 55 cm |
|---|---|
| Brand | STIHL |
| Blade Brake ClutchIndicates if the blade can be stopped while the engine keeps running. | FALSE |
| Collector SizeThe capacity of the grass collection bag or box in litres. | 55 |
| Cutting MethodThe cutting mechanism used (e.g., Rotary or Cylinder). | Rotary |
| Cutting WidthThe width of the grass cut in a single pass. | 51 cm |
| Deck MaterialThe material the cutter deck is constructed from (e.g., Steel, Aluminium). | Polymer |
| Drive TypeHow the mower is propelled (e.g., Push, Self-Propelled, Variable Speed). | Variable Speed |
| Mowing FunctionsAvailable mowing modes (e.g., Collection, Mulching, Side-Discharge). | [“Collection”,”Mulch”,”Side-Discharge”] |
| Rear RollerIndicates if the mower features a rear roller for creating lawn stripes. | FALSE |
As a brand, STIHL's international reputation goes before it and the name is well known and respected by homeowners and gardening professionals alike.
STIHL has created and honed a number of innovations, particularly in the development of its chainsaws, one of its flagship products. STIHL chainsaws are well known and sought after for their power, sturdy construction, durability and user-friendly features!
We offer a free delivery service for all machines within a 30 mile radius. Not only that; we build, inspect and run up every machine prior to delivery. Making sure you get a fully functional machine that is set-up and ready for use. On delivery we will run through with you any instructions & maintenance advice so you are comfortable with your new machine.
Free local delivery and handover
Industry trained sales team
In-house machinery repairs
Family run since 1908
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