EGO Power+ ST1500SF 15-Inch Cordless String Trimmer for Weeds & Grass - Lightweight, Split Shaft Design with Rapid Reload Technology (Battery & Charger Sold Separately) | Perfect for Lawn Care, Yard Maintenance & Landscaping

I have an Ego self-propelled push mower and blower, so easy to go this route. Really glad I bought the self-winding version - that is my favorite function. I spend 1/2 the time I used to on weed wacking because the string management is so much easier. All you have to do is cut a 14' length of string, feed it in, and push the button. No more winding and adjusting. Also, the string length self adjusts without bumping - I was pleasantly surprised how well implemented this feature is. String seems to last longer while doing more work with this trimmer. It's quite powerful compared to other electric trimmers (including ones that are from from a power cord directly) using the same string.I use both 5Ah and 10 Ah batteries with this trimmer; the 10 Ah lasts 3-4 times as long as the 5 Ah when I'm cutting heavy weeds and small saplings down by the lake or by the woods. This is a powerful trimmer for the homeowner and after a year of ownership, I am extremely pleased with it. However; make sure you get a version with a strap if you're going to doing more than 20 minutes of work with it. And especially if you use the 10 or 12 Ah battery.