RMA 443 Cordless Lawnmower
SKU: Stihl | RM-WA40 011 1400
- Regular price
- £516.00 Ex VAT
- £619.20 Inc VAT
- RRP: £573.33 Ex VAT
- Sale price
- £516.00 £516.00 Ex VAT
- Regular price
-
- £619.20 £619.20 Inc VAT
Free UK Delivery Over £50 +VAT
Worldwide Shipping from the UK
Trusted UK Arborist Retailer
30-Day Easy Returns
STIHL Approved Dealer
As a STIHL Approved Dealer, we supply genuine UK-spec machines with full manufacturer warranty, professional preparation, and expert aftersales support.
Product information & specifications
STIHL RMA 443 Cordless Lawn Mower – 41cm
STIHL Cashback Available
Save with official STIHL cashback on this product
This product qualifies for official STIHL cashback. Cashback value depends on whether you buy the tool only or with an AK battery and AL charger.
| Purchase Type | Cashback Amount |
|---|---|
| Tool Only | £85 |
| Tool + AK Battery & AL Charger | £95 |
Cashback must be claimed within 30 days of purchase.
The STIHL RMA 443 cordless lawn mower is a lightweight, quiet battery-powered push mower designed for homeowners maintaining medium-sized to large gardens. Part of STIHL’s 4 Series cordless lawn mower range, it combines strong cutting performance with low-noise operation—ideal for residential areas.
Built with a rugged double-layer polymer deck, the RMA 443 is lightweight, rust-proof and UV resistant for long-lasting durability. It features a 41cm (16") cutting width and central single-point cutting height adjustment from 20mm to 100mm, making it easy to tailor the cut throughout the season.
The RMA 443 runs on STIHL’s AK System and is powered by an AK 20 battery (recommended). The mower includes two battery slots in the powerhead, allowing you to carry a second battery and switch over quickly when the first runs out. With the recommended AK 20, you can mow up to 230 m² on a full charge (working area varies depending on conditions).
For maximum versatility, the RMA 443 offers 4 mowing modes: collect, cut and drop, side discharge, and mulching (by switching it to mulch mode). Clippings are collected in a large 52-litre grass catcher with a fill-level indicator and folding design for quick, clean emptying.
The height-adjustable mono-handlebar provides comfortable control and makes grass box access easier. It folds down for compact storage and is backed by a 10-year domestic warranty.
Key Features
- Quiet, lightweight cordless push lawn mower for home gardens
- 41cm / 16" cutting width
- Rugged double-layer polymer deck (lightweight, rust-proof, UV resistant)
- AK System compatible (recommended AK 20 battery)
- Two battery slots for quick battery switching
- Central cutting height adjustment (20–100mm)
- 4 mowing modes: collect, drop, side discharge, mulch mode
- 52-litre grass catcher box with fill-level indicator
- Height-adjustable, foldable mono-handlebar (10-year domestic warranty)
- Designed for daily use with IPX4 splashwater protection
4 Mowing Modes
- Cut & collect with grass catcher fitted
- Cut & drop by removing the catcher
- Side discharge using the integrated deck flap
- Mulch mode to return nutrients back to the lawn
Technical Specification
| Model | STIHL RMA 443 |
|---|---|
| Power System | STIHL AK System |
| Recommended Battery | AK 20 (interchangeable within AK range) |
| Battery Slots | 2 (quick switch capability) |
| Cutting Width | 41cm / 16" |
| Cutting Height | 20–100mm (central adjustment) |
| Grass Collector | 52 litres with fill-level display |
| Working Area | Up to 230 m² (with recommended AK 20) |
| Protection Rating | IPX4 (splashwater protection) |
Helpful Links
If you’re choosing the right setup for this product, you may also want to explore the related categories, batteries, chargers, and cordless tool ranges below.
Shop Related Categories
Complete Your Setup
Helpful Guides
| Cutting width | 41 cm |
| Cutting height | 20 - 100 mm |
| Grass catcher box volume | 52 l |
| Device width | 50 cm |
| Device height | 108 |
| Front wheel diameter | 190 mm |
| Rear wheel diameter | 215 mm |
| Drive | -- |
| Rated power | 1200 W |
| Rated speed of sweeping attachment | 3000 rpm |
| Device weight | 24 kg |
| Sound power level, guaranteed LWA | 90 dB(A) |
| Measured sound pressure level LpA | 75 dB(A) |
| Uncertainty factor, sound pressure level KpA | 2 dB(A) |
| Vibration, guide bar, ahw | 1.4 m/s² |
| Vibration uncertainty K | 0.7 m/s² |
| Battery system | AK |
| IPX Rating | IPX4 |
STIHL RMA 443 Cordless Lawn Mower – 41cm
STIHL Cashback Available
Save with official STIHL cashback on this product
This product qualifies for official STIHL cashback. Cashback value depends on whether you buy the tool only or with an AK battery and AL charger.
| Purchase Type | Cashback Amount |
|---|---|
| Tool Only | £85 |
| Tool + AK Battery & AL Charger | £95 |
Cashback must be claimed within 30 days of purchase.
The STIHL RMA 443 cordless lawn mower is a lightweight, quiet battery-powered push mower designed for homeowners maintaining medium-sized to large gardens. Part of STIHL’s 4 Series cordless lawn mower range, it combines strong cutting performance with low-noise operation—ideal for residential areas.
Built with a rugged double-layer polymer deck, the RMA 443 is lightweight, rust-proof and UV resistant for long-lasting durability. It features a 41cm (16") cutting width and central single-point cutting height adjustment from 20mm to 100mm, making it easy to tailor the cut throughout the season.
The RMA 443 runs on STIHL’s AK System and is powered by an AK 20 battery (recommended). The mower includes two battery slots in the powerhead, allowing you to carry a second battery and switch over quickly when the first runs out. With the recommended AK 20, you can mow up to 230 m² on a full charge (working area varies depending on conditions).
For maximum versatility, the RMA 443 offers 4 mowing modes: collect, cut and drop, side discharge, and mulching (by switching it to mulch mode). Clippings are collected in a large 52-litre grass catcher with a fill-level indicator and folding design for quick, clean emptying.
The height-adjustable mono-handlebar provides comfortable control and makes grass box access easier. It folds down for compact storage and is backed by a 10-year domestic warranty.
Key Features
- Quiet, lightweight cordless push lawn mower for home gardens
- 41cm / 16" cutting width
- Rugged double-layer polymer deck (lightweight, rust-proof, UV resistant)
- AK System compatible (recommended AK 20 battery)
- Two battery slots for quick battery switching
- Central cutting height adjustment (20–100mm)
- 4 mowing modes: collect, drop, side discharge, mulch mode
- 52-litre grass catcher box with fill-level indicator
- Height-adjustable, foldable mono-handlebar (10-year domestic warranty)
- Designed for daily use with IPX4 splashwater protection
4 Mowing Modes
- Cut & collect with grass catcher fitted
- Cut & drop by removing the catcher
- Side discharge using the integrated deck flap
- Mulch mode to return nutrients back to the lawn
Technical Specification
| Model | STIHL RMA 443 |
|---|---|
| Power System | STIHL AK System |
| Recommended Battery | AK 20 (interchangeable within AK range) |
| Battery Slots | 2 (quick switch capability) |
| Cutting Width | 41cm / 16" |
| Cutting Height | 20–100mm (central adjustment) |
| Grass Collector | 52 litres with fill-level display |
| Working Area | Up to 230 m² (with recommended AK 20) |
| Protection Rating | IPX4 (splashwater protection) |
Helpful Links
If you’re choosing the right setup for this product, you may also want to explore the related categories, batteries, chargers, and cordless tool ranges below.
Shop Related Categories
Complete Your Setup
Helpful Guides
| Cutting width | 41 cm |
| Cutting height | 20 - 100 mm |
| Grass catcher box volume | 52 l |
| Device width | 50 cm |
| Device height | 108 |
| Front wheel diameter | 190 mm |
| Rear wheel diameter | 215 mm |
| Drive | -- |
| Rated power | 1200 W |
| Rated speed of sweeping attachment | 3000 rpm |
| Device weight | 24 kg |
| Sound power level, guaranteed LWA | 90 dB(A) |
| Measured sound pressure level LpA | 75 dB(A) |
| Uncertainty factor, sound pressure level KpA | 2 dB(A) |
| Vibration, guide bar, ahw | 1.4 m/s² |
| Vibration uncertainty K | 0.7 m/s² |
| Battery system | AK |
| IPX Rating | IPX4 |
STIHL Warranty
STIHL offer a 1 year professional warranty or 2 year domestic warranty with all of their machines.
The following exceptions apply:
- AK System, AS System and AI Line cordless products aren't covered under warranty when used by professionals
- AP System machines, batteries and chargers - 2 year professional warranty
- Pressure washers - 2 year professional warranty or 3 year domestic warranty
- Mowers, tillers, shredders, scarifiers & iMOW machines - See STIHL's website here
Extend your Stihl warranty by an additional year when purchasing a STIHL Smart Connector with selected machinery from the petrol and cordless range. Extends your petrol warranty from 1 to 2 years AND 2 to 3 years on select cordless tools.
Downloads
STIHL offer a 1 year professional warranty or 2 year domestic warranty with all of their machines.
The following exceptions apply:
- AK System, AS System and AI Line cordless products aren't covered under warranty when used by professionals
- AP System machines, batteries and chargers - 2 year professional warranty
- Pressure washers - 2 year professional warranty or 3 year domestic warranty
- Mowers, tillers, shredders, scarifiers & iMOW machines - See STIHL's website here
Extend your Stihl warranty by an additional year when purchasing a STIHL Smart Connector with selected machinery from the petrol and cordless range. Extends your petrol warranty from 1 to 2 years AND 2 to 3 years on select cordless tools.
Downloads
Delivery & Returns
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Delivery on orders over £50 + VAT
Estimated delivery: 2–4 working days - UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £5.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00
Estimated delivery: 2–7 working days - Rest of the World from £12.00
Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.
UK Delivery
Fast, reliable delivery from our UK warehouse.
- FREE UK Delivery on orders over £50 + VAT
Estimated delivery: 2–4 working days - UK Standard Delivery from £3.60 + VAT
Estimated delivery: 2–4 working days
- Next Working Day Delivery – £5.00 + VAT
Order before 3:00pm (Monday–Friday) for next working day delivery
All UK orders are dispatched Monday–Friday and sent via a tracked courier service.
International Delivery
We ship worldwide from the UK.
- Europe from £10.00
Estimated delivery: 2–7 working days - Rest of the World from £12.00
Estimated delivery: 2–11 working days
Shipping costs and delivery times are calculated at checkout based on destination and order contents.
Customs, Duties & Taxes
International orders may be subject to local import duties, taxes, or customs charges.
When UPS is selected at checkout, applicable duties and taxes are included in the total price. For other shipping services, duties and taxes may be charged separately on delivery and are the responsibility of the recipient.
Customs processing times may affect delivery estimates.
Returns
30-Day Return Policy
- Items can be returned within 30 days of delivery
- Products must be unused and in original condition
- Return postage costs apply unless the item is faulty or incorrect
For full details, please visit our Shipping & Returns page.

