As the battery gets low you can definitely tell the difference. But compared to fighting a gas saw to get it started... or having the carb rebuilt... it’s a game changer in my book. It ain’t something for actual loggers but for what I do... I grab it, press the safety, and pull the trigger... no throwing my shoulder out trying to start the damn thing. Lol. That is why I went with an electric Milwaukee weed eater at my house. Just got annoyed of starting that thing everytime. My dad has the Milwaukee chainsaw and he loves it!! Only 18 volt and it does the work of the Dewalt 60 volt... can you say better motor??? Lol.