For steady use 20 volt Dewalt tools with an extra battery or two and charger. The battery and chargers aren't cheap separately. They do come with many Dewalt tools.
Plus for me is I have 20 volt Dewalt blower and grass trimmer. I use them often.
The trimmer's OK, but I have an acre with lots of trimming and 20+ trees. Need 2 charged batteries.
Milwaukee seems popular with the steady power tool users.