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RMA 243 Cordless Lawn Mower
SKU: Stihl | RM-WA20 011 1400
- Regular price
- £418.50 Ex VAT
- £502.20 Inc VAT
- RRP: £465.00 Ex VAT
- Sale price
- £418.50 £418.50 Ex VAT
- Regular price
-
- £502.20 £502.20 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 243 Cordless Lawn Mower (Tool Only) – 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 | £40 |
| Tool + AK Battery & AL Charger | £50 |
Cashback must be claimed within 30 days of purchase.
The STIHL RMA 243 cordless lawn mower (tool only) is a lightweight, quiet battery-powered push mower built for small to medium-sized home gardens. As part of STIHL’s AK System, it delivers clean, low-noise mowing with the convenience of interchangeable batteries across the AK range.
Please note: This listing is the tool-only version (no battery or charger). This model is also available as a set with a battery and charger—please make sure you select the correct option before adding to basket.
Built with a durable sheet steel deck, the RMA 243 features a 41cm (16") cutting width and single-point cutting height adjustment from 20mm to 100mm, making it easy to adapt to seasonal growth and your preferred finish.
The RMA 243 is powered by an AK 20 battery (recommended) and includes two battery slots in the powerhead, allowing you to carry a second AK battery and switch over quickly when the first runs out. With the recommended AK 20 battery, you can mow lawns up to 230 m² on a full charge (working area varies depending on grass conditions and cutting height).
With its flexible 4-in-1 mowing system, you can choose the best method for your lawn and conditions: collect, cut and drop, side discharge, or mulch using the multi-blade and mulching attachment. The 52-litre grass catcher box features a fill-level indicator and is designed for fast, clean emptying.
Comfort is enhanced by the mono-handlebar, which makes it easier to remove the catcher and provides straightforward, ergonomic control. The handlebar is height adjustable and foldable for compact storage after use, and includes a 10-year domestic warranty.
Key Features
- Tool only – battery & charger not included
- Quiet, lightweight cordless push mower for home gardens
- 41cm / 16" cutting width
- Durable sheet steel deck
- Single-point cutting height adjustment (20–100mm)
- AK System compatible (recommended AK 20 battery)
- Two battery slots for quick battery switching
- 4-in-1 mowing: collect, drop, side discharge, mulch
- 52-litre grass catcher box with fill-level indicator
- Height-adjustable, foldable mono-handlebar (10-year domestic warranty)
4-in-1 Mowing Options
- Cut & collect with the grass catcher box fitted
- Cut & drop by removing the grass catcher box
- Side discharge using the integrated deck flap
- Mulching with the multi-blade and mulching attachment
Technical Specification
| Model | STIHL RMA 243 (Tool Only) |
|---|---|
| Power System | STIHL AK System (recommended AK 20) |
| Battery Slots | 2 (quick switch capability) |
| Cutting Width | 41cm / 16" |
| Cutting Height | 20–100mm (single-point adjustment) |
| Grass Collector | 52 litres with fill-level display |
| Working Area | Up to 230 m² (with recommended AK 20) |
| Included | Tool only (no battery/charger) |
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 | 51 cm |
| Device height | 117 |
| Front wheel diameter | 180 mm |
| Rear wheel diameter | 200 mm |
| Drive | -- |
| Rated power | 1200 W |
| Rated speed of sweeping attachment | 3000 rpm |
| Device weight | 26 kg |
| Sound power level, guaranteed LWA | 90 dB(A) |
| Measured sound pressure level LpA | 76 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 243 Cordless Lawn Mower (Tool Only) – 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 | £40 |
| Tool + AK Battery & AL Charger | £50 |
Cashback must be claimed within 30 days of purchase.
The STIHL RMA 243 cordless lawn mower (tool only) is a lightweight, quiet battery-powered push mower built for small to medium-sized home gardens. As part of STIHL’s AK System, it delivers clean, low-noise mowing with the convenience of interchangeable batteries across the AK range.
Please note: This listing is the tool-only version (no battery or charger). This model is also available as a set with a battery and charger—please make sure you select the correct option before adding to basket.
Built with a durable sheet steel deck, the RMA 243 features a 41cm (16") cutting width and single-point cutting height adjustment from 20mm to 100mm, making it easy to adapt to seasonal growth and your preferred finish.
The RMA 243 is powered by an AK 20 battery (recommended) and includes two battery slots in the powerhead, allowing you to carry a second AK battery and switch over quickly when the first runs out. With the recommended AK 20 battery, you can mow lawns up to 230 m² on a full charge (working area varies depending on grass conditions and cutting height).
With its flexible 4-in-1 mowing system, you can choose the best method for your lawn and conditions: collect, cut and drop, side discharge, or mulch using the multi-blade and mulching attachment. The 52-litre grass catcher box features a fill-level indicator and is designed for fast, clean emptying.
Comfort is enhanced by the mono-handlebar, which makes it easier to remove the catcher and provides straightforward, ergonomic control. The handlebar is height adjustable and foldable for compact storage after use, and includes a 10-year domestic warranty.
Key Features
- Tool only – battery & charger not included
- Quiet, lightweight cordless push mower for home gardens
- 41cm / 16" cutting width
- Durable sheet steel deck
- Single-point cutting height adjustment (20–100mm)
- AK System compatible (recommended AK 20 battery)
- Two battery slots for quick battery switching
- 4-in-1 mowing: collect, drop, side discharge, mulch
- 52-litre grass catcher box with fill-level indicator
- Height-adjustable, foldable mono-handlebar (10-year domestic warranty)
4-in-1 Mowing Options
- Cut & collect with the grass catcher box fitted
- Cut & drop by removing the grass catcher box
- Side discharge using the integrated deck flap
- Mulching with the multi-blade and mulching attachment
Technical Specification
| Model | STIHL RMA 243 (Tool Only) |
|---|---|
| Power System | STIHL AK System (recommended AK 20) |
| Battery Slots | 2 (quick switch capability) |
| Cutting Width | 41cm / 16" |
| Cutting Height | 20–100mm (single-point adjustment) |
| Grass Collector | 52 litres with fill-level display |
| Working Area | Up to 230 m² (with recommended AK 20) |
| Included | Tool only (no battery/charger) |
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 | 51 cm |
| Device height | 117 |
| Front wheel diameter | 180 mm |
| Rear wheel diameter | 200 mm |
| Drive | -- |
| Rated power | 1200 W |
| Rated speed of sweeping attachment | 3000 rpm |
| Device weight | 26 kg |
| Sound power level, guaranteed LWA | 90 dB(A) |
| Measured sound pressure level LpA | 76 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.
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.
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.