The Ryobi ZRP540A is an effective, small and cheap cordless chainsaw. Very useful for cutting through vines, brushes and branches, but not very effective for cutting down trees as it is not powerful enough. It's small enough to be used by younger members of the family. Use the Ryobi cordless chainsaw for lightweight work, not heavy duty. If possible, find the strongest battery available as it will boost the power of the chainsaw quite a bit.