Why buy the Cobra S3840V 15″ Cordless Scarifier (Kit)?
- Complete cordless kit with 40V 5Ah battery and charger included.
- Versatile 2-in-1 design with interchangeable scarifying and aerating cylinders.
- 15″ (38cm) working width, ideal for small to medium-sized British lawns.
- Adjustable working depth (-10mm to +5mm) for tailored lawn treatment.
- Large 50-litre collection bag for fewer stops and efficient clearing.
- Lightweight design (14.5kg) with folding, tool-less adjustable handles for comfort and storage.
Revitalise Your Lawn with Cordless Freedom
The Cobra S3840V Cordless Scarifier offers a complete solution for lawn care, combining the functions of both an aerator and a scarifier in one powerful, battery-operated machine. It is expertly designed to remove unwanted moss and thatch, allowing air, water, and nutrients to penetrate the soil for a greener, healthier lawn. With a working width of 38cm (15″), it is perfectly suited for homeowners with small to medium-sized lawns seeking a professional finish without the hassle of electric cables.
Dual-Function Versatility
This machine comes complete with two interchangeable cylinders to provide comprehensive lawn treatment. The scarifying cylinder is equipped with 22 durable spring tines, which are perfect for raking out moss and dead grass. For more intensive care, the aerating cylinder features 14 sharp blades that cut into the soil to relieve compaction and improve drainage. This dual functionality ensures your lawn receives the exact treatment it needs throughout the year.
Efficient 40V Lithium-ion Power
Powered by Cobra’s reliable 40V Lithium-ion system, the S3840V delivers consistent performance without the noise or emissions of a petrol engine. The included 5.0Ah battery provides ample power for typical lawn care tasks, and features a convenient power indicator to monitor remaining charge.
| Battery Model | Run Time | Charge Time |
|---|---|---|
| 40V 5Ah Li-ion (Included) | Up to 40 mins | Approx. 90 mins |
User-Focused and Ergonomic Design
The Cobra S3840V is designed for user comfort and convenience. It features a simple-to-use working depth adjustment, ranging from -10mm for deep scarifying to +5mm for lighter tasks. The large 50-litre collection bag efficiently gathers debris, reducing the need for manual raking and frequent emptying. Furthermore, the handles are designed with a convenient tool-less adjustment system, allowing users to quickly set them to a comfortable working height. The handles also fold down, making the scarifier compact for easy storage in a shed or garage. At just 14.5kg, it is lightweight and easy to manoeuvre around the garden.
As an authorised UK dealer for Cobra, Sims Garden Machinery provides full support for this product. You can view this and other lawn care equipment at our Stratford-upon-Avon showroom, where our trained sales staff can offer expert advice.
Purchase with Confidence from an Authorised UK Dealer
Sims Garden Machinery is an established, family-run business with a 100-year history. As an authorised UK dealer for Cobra, purchasing from us provides peace of mind. Unlike online-only box-shifters, we offer genuine after-sales support. For local customers in the Warwickshire area, this machine comes with our free PDI (Pre-Delivery Inspection), local delivery, and a comprehensive handover demonstration by our trained staff to ensure you can use your new machine safely and effectively. Our trained mechanics are also on-site in our workshop to handle any future servicing or warranty needs.
Our team is here to help. Contact us today for expert advice.
Technical Specification
| Battery | 1x 40v 5Ah Li-ion |
| Charger | 1x Standard Charger |
| Drive Type | Hand Propelled |
| Working Width | 38cm / 15″ |
| Working Depth | -10mm – +5mm |
| Cylinders | Aerating & Scarifying |
| Aerator Blades | 14 |
| Scarifier Tines | 22 |
| Run Time | 40mins |
| Approx Charge Time | 90mins |
| Battery Power Indicator | Yes |
| Grass Bag Capacity | 50L |
| Folding Handles | Yes |
| Weight | 14.5kg |
| Domestic Warranty | 2 Years |
| Power Type | Cordless |
Why buy from Sims Garden Machinery?
Authorised main dealer
We are authorised dealers for leading brands, meaning genuine parts, manufacturer-approved training, and warranty support you can rely on.
Real people, real support
No call centres. No ticket systems. Just a knowledgeable local team you can speak to when you need help.
Expert advice — not pushy sales
Our team are trained mechanics and product specialists, so you get honest, practical advice based on how you’ll actually use the machine.
Established, independent family business
We’re a long-standing independent dealer with deep roots in the local area — built on reputation, repeat customers, and word of mouth.
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