Straight out of the box only needed to screw on the handle and put the catcher together. Battery had full charge and mower started easily (Push button, pull handle). From one charge managed to mow both front and back(pictured) yards and medium strip, front yard is half the size of the back, so I am impressed. Obviously the higher the grass the more power you are going to use, but it did the job, and was really quiet. The mower is super light, and I would suggest maybe some mesh in the sides of the catcher vents to limit the amount of dust and bits that tend to fly out. Over all I am really impressed and would happily encourage anyone thinking about one of these to go for it. It has already performed beyond my expectations. Well done to the team at Swiftpower.Edit: Battery is 40V 80Wh 2000mAhAfter first charge Battery only dropped 1 bar when mowing the back lawn, and after mowing front and medium strip battery is still holding 2 bars, super impressed.