Cobra RM51SP80VX MAX+ 40v Cordless Self-Propelled Rear-Roller Lawn Mower Kit - 51cm

Runtime varies based on grass conditions, cutting height, and terrain. With 2 x 4Ah batteries, you can expect to mow a medium-sized lawn (approx. 400-500 sq m) on a single charge, but this is an estimate and can differ.

No, it is crucial to only use official Cobra 40V Lithium-Ion batteries and chargers with this mower to ensure safety and optimal performance. Using incompatible batteries can damage the mower and void the warranty.

For the best stripes, mow when the grass is dry. Mow in alternating directions on subsequent passes. Ensure the rear roller is clean and free from debris.

Refer to the product manual or Cobra's official website for the most current warranty information. Typically, lawn mowers and their batteries come with a manufacturer's warranty, often for domestic use.

This kit includes two Cobra 4Ah 40V Lithium-Ion batteries and one charger.

It is generally recommended to mow when the grass is dry. Mowing wet grass can lead to clumping, uneven cutting, and reduced collection efficiency, and may strain the motor.

Ensure both batteries are fully charged and correctly inserted. Check that the safety key is in the correct position. Verify the grass bag is properly fitted, as some models have a safety switch linked to the bag.

Confirm the drive lever is engaged. Check battery levels, as lower charge can affect self-propulsion power. Ensure there are no obstructions in the drive system.

Check the selected cutting height; it might be too low for the grass length. Ensure the blade is sharp and free from damage. Clean the grass bag and discharge chute, as blockages can impede airflow and collection.

This could be due to low battery levels in one or both batteries. Allow batteries to cool if they have been used extensively in hot conditions. Check for any obstructions jamming the blade.