Like everyone else, I was reserved about buying this product as my gas trimmer just broke down after 5 years. Again, like most people, I wanted something that is environmentally friendly, so as this unit was on sale for Father's day, my wife bougth it for me. On a full charge battery, I timed it for full 17 mins of full use to edge my corner lot. Of course, it didn't finish the job without replacing the 2nd battery. That lasted about 15 mins. Yard is not finished. The next day, I just used it to just trim around the post, fence, under brush and the like, the fully charge battery has no problem trimming all on a .18 ac corner lot. Now my edging is not complete as yet. At this rate, I think you will need about 4 fully charged batter to finish the job because edging take a lot more power to do the job so it drained more out of the battery. I think that this unit is very good and very easy to use due to its light weight but you need to know what you are planning to use it for. I had it for only 2 days but so far I think I will keep it unless it break in the next week or so. For the benefit of environmentally friendly, it is worth it for me as I can wait for the battery to charge to finish edging my lawn.
Black & Decker 18 Volt 12 in. Cordless Grasshog Trimmer/Edger is recommended by Koobiiskoobii
Cordless electric trimmer provides hassle free trigger starting along with an adjustable auxiliary handle which adjust to user's height. A AFS™ system uses centrifugal force to automatically advance line when needed. 12 in. cut path cuts more area per charge than other cordless trimmers. Groom N' Edge™ converts from trimming to edging with the touch of one button. Includes two batteries.