When it's the matter of taking care of trees, I will prefer gas or battery powered chainsaw. These chainsaw's are easy to handle on the tree branch.
Battery-powered chain saws are convenient, quieter than gas-powered saws and lower maintenance. Also, if you own or purchase other outdoor power equipment that can use the same battery, it makes even more sense to own a battery-powered chain saw. On the other hand Compared to electric chainsaw or battery chainsaws, gas-powered ones are more powerful and efficient in terms of run time, cutting speed, mobility. Some gas chainsaws are suitable for handling heavy-duty tasks like felling, bucking large trees. If you are an arborist then this article from
https://toolsvoice.com/ will help you to make a decision. Although, it's not easy to take a decision among the numerous brand like Stihl, ECHO, Husqvarna, Dewalt, Craftsman, Makita etc.