I charged the battery before using the trimmer which took about an hour (there is an indicator light that turns green once charging is complete). Once I was using it on some of my shrubs and bushes around the house it cut like butter. Even though some of the thicker more grown in areas which I was very impressed with. The battery also lasted the entire run around the house which is about a 2,500 sq footprint.
Overall I'm very happy and would highly recommend this hedge trimmer to anyone looking to buy one!