Cobra MX4340VX Cordless Lawnmower (17" Cutting Width, Red and Silver)

How long does the 40V battery last during mowing?

The 4Ah lithium-ion battery provides at least 45 minutes of continuous runtime according to user feedback. Actual runtime depends on grass conditions, cutting height settings and terrain. Thick or wet grass may reduce battery life, whilst regular maintenance and optimal cutting heights maximise performance. The battery recharges fully in approximately 90 minutes using the included charger.

What size garden is this mower suitable for?

The 43cm cutting width makes this mower ideal for medium-sized gardens up to approximately 400 square metres. The battery runtime of 45+ minutes allows coverage of this area in a single charge under normal conditions. Smaller gardens benefit from the manoeuvrability, whilst larger areas may require battery recharging mid-session or a second battery purchase.

Can I use this mower for mulching without the grass bag?

Yes, the included mulching plug converts the mower for mulching operation. Remove the grass collection bag and insert the mulching plug to redirect clippings back onto the lawn. The cutting system chops grass finely for quick decomposition. This provides natural fertiliser whilst eliminating bag emptying, though requires more frequent mowing to prevent clumping.

How do I adjust the cutting height?

The central lever system adjusts cutting height across five positions from 25mm to 75mm. Simply lift the lever and move to your desired position - no tools required. Lower settings create formal lawn appearances but stress grass during dry periods. Higher cuts promote healthier root development and drought resistance, particularly during summer months.

Is assembly required and how difficult is it?

Yes, some assembly is required including handle attachment and grass bag fitting. Most users complete assembly within 30 minutes using basic tools. The instruction manual provides clear diagrams, though some customers report minor issues with grass bag handle alignment. The mulching plug may come pre-fitted and require removal if immediate mulching isn't desired.

How does the grass collection system work?

The 50L grass bag attaches to the rear of the mower with a secure fitting system. Airflow from the cutting deck draws clippings into the bag through the discharge chute. Front and side grass combs lift grass stems for cleaner cutting and improved collection efficiency. The large capacity reduces emptying frequency compared to smaller bags on competing models.

What maintenance does this cordless mower require?

Regular maintenance includes cleaning the deck after use, checking blade sharpness and proper battery storage. The polymer deck resists rust but benefits from washing to prevent grass buildup. Blade sharpening every season maintains cutting quality. Store the battery indoors during winter and charge every few months to maintain capacity. No oil changes or spark plug maintenance required unlike petrol mowers.

Does the mower work well on uneven terrain?

The lightweight 16kg construction and four-wheel design handle moderate slopes and uneven ground effectively. The polymer deck won't scalp easily on bumps compared to rigid steel decks. However, very steep slopes or rough terrain may challenge battery life and cutting quality. The mower performs best on relatively level lawns with occasional undulations typical of British gardens.