The Cobra 40V VX range is excellent and very well-built. For a 350 square meter lawn, the MX4140VX is a great choice and should handle that size with ease.

The new MAX+ batteries are impressively compact, and the 40V system provides plenty of power for standard and even slightly longer lawns. Overall, I highly rate the Cobra MAX+ equipment for its reliability and performance.

If you do decide to buy, I would greatly appreciate it if you used my affiliate links at no extra cost to you!
https://amzn.to/4oNXRY7

Thanks,
Mark