RMA 243 Cordless Lawn Mower
SKU: Stihl | RM-WA20 011 1400
- Regular price
- £303.00 Ex VAT
- £363.60 Inc VAT
- RRP: £311.67 Ex VAT
- Sale price
- £303.00 £303.00 Ex VAT
- Regular price
-
- £363.60 £363.60 Inc VAT
Free Standard UK Delivery Over £75 +VAT
Easy Returns
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Product information & specifications
Conquer Your Lawn Wire-Free with the STIHL RMA 243 Cordless Lawnmower
Say goodbye to petrol fumes and tangled extension cords with the STIHL RMA 243, a powerful cordless lawnmower ideal for maintaining smaller to medium-sized gardens up to 230m2 in size. This user-friendly mower boasts a lightweight design and a spacious 41cm cutting width, allowing you to navigate around borders and flowerbeds with ease, making those weekend trimming sessions a breeze. The grass catcher box has plenty of space inside, holding 52 litres of cuttings which means less trips to the compost heap!
Choose Your Power Source:
The RMA 243 offers two purchasing options to suit your needs. The shell version allows you to pick a compatible battery from the STIHL AK System, giving you the flexibility to use the same battery across other STIHL cordless tools. Alternatively, the convenient set includes the AK20 battery and the AL101 charger, providing everything you need to get mowing straight out of the box. The RMA 243 has a second storage slot which allows you to carry two batteries and swap them over mid cut to get straight back cutting the grass.
Effortless Manoeuvring and Mulching Magic:
The RMA 243's height-adjustable handlebars ensure a comfortable mowing posture, while the lightweight construction makes it easy to push and manoeuvre around your garden. This mower boasts a 4-in-1 mowing system, offering you the freedom to collect grass clippings in the sizeable 52-litre grass catcher, discharge them directly onto the lawn, or mulch them finely with the dedicated mulching function. Mulching returns vital nutrients back to your soil, promoting a healthier and greener lawn.
Peace and Quiet in the Neighbourhood:
Unlike petrol-powered mowers, the RMA 243 operates at a whisper-quiet level, making it perfect for mowing in noise-sensitive areas or early mornings without disturbing the neighbours. Additionally, the absence of petrol fumes contributes to a cleaner and more pleasant garden environment.
Easy Maintenance and Compact Storage:
The RMA 243 is designed for easy maintenance. The single-point height adjustment allows for quick cutting height changes, while the foldable handlebars ensure compact storage, taking up minimal space in your shed or garage.
Embrace a Hassle-Free Mowing Experience:
The STIHL RMA 243 cordless lawnmower is the perfect choice for homeowners seeking a convenient and eco-friendly way to maintain their lawns. With its user-friendly features, quiet operation, and versatile mowing options, this mower offers a breath of fresh air into your garden routine.
| 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 |
Conquer Your Lawn Wire-Free with the STIHL RMA 243 Cordless Lawnmower
Say goodbye to petrol fumes and tangled extension cords with the STIHL RMA 243, a powerful cordless lawnmower ideal for maintaining smaller to medium-sized gardens up to 230m2 in size. This user-friendly mower boasts a lightweight design and a spacious 41cm cutting width, allowing you to navigate around borders and flowerbeds with ease, making those weekend trimming sessions a breeze. The grass catcher box has plenty of space inside, holding 52 litres of cuttings which means less trips to the compost heap!
Choose Your Power Source:
The RMA 243 offers two purchasing options to suit your needs. The shell version allows you to pick a compatible battery from the STIHL AK System, giving you the flexibility to use the same battery across other STIHL cordless tools. Alternatively, the convenient set includes the AK20 battery and the AL101 charger, providing everything you need to get mowing straight out of the box. The RMA 243 has a second storage slot which allows you to carry two batteries and swap them over mid cut to get straight back cutting the grass.
Effortless Manoeuvring and Mulching Magic:
The RMA 243's height-adjustable handlebars ensure a comfortable mowing posture, while the lightweight construction makes it easy to push and manoeuvre around your garden. This mower boasts a 4-in-1 mowing system, offering you the freedom to collect grass clippings in the sizeable 52-litre grass catcher, discharge them directly onto the lawn, or mulch them finely with the dedicated mulching function. Mulching returns vital nutrients back to your soil, promoting a healthier and greener lawn.
Peace and Quiet in the Neighbourhood:
Unlike petrol-powered mowers, the RMA 243 operates at a whisper-quiet level, making it perfect for mowing in noise-sensitive areas or early mornings without disturbing the neighbours. Additionally, the absence of petrol fumes contributes to a cleaner and more pleasant garden environment.
Easy Maintenance and Compact Storage:
The RMA 243 is designed for easy maintenance. The single-point height adjustment allows for quick cutting height changes, while the foldable handlebars ensure compact storage, taking up minimal space in your shed or garage.
Embrace a Hassle-Free Mowing Experience:
The STIHL RMA 243 cordless lawnmower is the perfect choice for homeowners seeking a convenient and eco-friendly way to maintain their lawns. With its user-friendly features, quiet operation, and versatile mowing options, this mower offers a breath of fresh air into your garden routine.
| 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 |
Delivery & Returns
Christmas Returns (Extended)
To give you extra peace of mind over Christmas:
- Orders placed between 10 October and 24 December 2025 can be returned up to 26 January 2026 (excluding Sale items)
- Orders placed from 25 December 2025 onwards are covered by our standard 30-day return policy
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.
Christmas Returns (Extended)
To give you extra peace of mind over Christmas:
- Orders placed between 10 October and 24 December 2025 can be returned up to 26 January 2026 (excluding Sale items)
- Orders placed from 25 December 2025 onwards are covered by our standard 30-day return policy
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.

