My RYOBI Weed eater, 40 V starts very easy and convenient. The Battery only lasts about 1 1/2 to 2 hrs. I think it might be old. Also it's power is only about 50 percent compared to my 4 cycle gas Ryobi Weed Eater. From the reviews I read before buying the 40v Weed eater rated it as powerful as the 4 cycle gas Ryobi weed eater and claimed it would last all day. Neither one of those reviews were correct.