The Greenworks tools mower powered by a rechargeable battery (charger included). The principle of the brand is that this battery is compatible with other brand tools (hedge trimmer, edger, pole saw, chainsaw ...) Battery comes partially charged, allowing you to start mowing at the mounting finished. I did my first test mowing for 15 minutes without problems. Recharge time is fairly quick (approximately 1 hour). Full charge, the battery allows approximately 20 minutes to mow. Unpacking, this mower featherweight (14 kg) is surprising: green apple, small size (cutting width of only 35cm), top, wheels, plastic housing (composite material described as very resistant) bag Pickup also plastic and fabric (therefore foldable). It has everything a Playmobil toy! The assembly is very simple (handlebar mount) and the clear use booklet. To start your mower, insert the battery in its housing (on the top of the mower) and a security key (seen well, but think about the tie not to lose). Once underway, second surprise, very nice: the sound is really decreased compared to a petrol lawnmower, it purrs. This mower to a rear cut adjustment from 20 to 80cm high. No adjustment on the front wheels. Note as well that this is not self-propelled mower, push. Tested in early March, I had not a lot of grass to cut, in the down position, the result was very good. In short: For me this English brand battery mower was designed for "backyards" typically English, so it is ideal for a city garden or allotment, flat (because no-propelled), not too rough (for lightweight plastic frame), and a small area (300-400m2 max. in view of the autonomy of 20 minutes, and the cutting width). She genera least the neighbors low noise compared to thermal, avoiding you the hassle of a string trimmer. Its size and light weight also allows the store easily, his handlebars and bag being foldable. It is against not suitable for large country garden with a vertical drop.