Might I suggest a battery trimmer if you have a basic 20-30 minute regiment. They will run longer, but if a person has heavy trimming or much more than that to do, you would be better served w/ a gas.Toro and Ryobi both seem good battery models. We have a Toro battery. Gas I have a Stihl, but Echo makes good gas trimmers.

Robar: I see you have been on the site for numerous yrs , just the same please refrain from posting duplicate threads on the same topic . One thread is adequate to resolve you needs within choice of a Gas Trimmer .