This is my first cordless electric trimmer. Despite of mediocre reviews at consumer reports I decided to try this one, after yet another half hour on my knees in the garage trying to start my diva-esque 3-year-old 2-cycle gas engine trimmer..
Shipping was slow, packing the worst I've ever seen from Amazon! But it worked, and it was fairly easy to put the parts together. I used it twice now, so here is my impression:
Sleek looks, length is adjustable (but barely enough for me, and I am only 6ft tall), charging really takes 8 hours for each battery (!), and the trimmer runs between 10 and 12 minutes with a fully charged battery - less if you are edging stubborn St Augustine grass.
It is louder than I expected, but still much better than a gas engine trimmer.
The line is a little thinner (.65) compared to my Ryobi gas trimmer (.80), the diameter of the cutting area is a lot smaller and it uses only one line instead of two, so it takes a little longer to trim the same area. But it still works fine on a regular size suburban lot like mine. I did not find anything that this trimmer would not 'mowe down', so this is a success! It takes a little more time, but the lower weight, noise and aggravation level are making up for it. No more mixing gas and oil and fiddling with starters..
The Black&Decker is too weak, at least for edging the stubborn crawling shoots of our Floridian St Augustine grass. It still works, but I have to carry a manual pruning cutter with me and walk the edged line again to cut the remaining grass by hand.. I am not sure if the line is too soft or too thin or whether it is just the lack of power or rotation speed, all I can say is it cannot compare to a good gas powered edger.
The batteries are gone fast too, when you are edging. That's a disappoinment. Since this unit is very light weight and the batteries are small, it makes you wonder why they didn't double the battery size/capacity? It would still be very small and light weight..
All in all a really nice tool for a suburban lot, and good enough if you are willing to add some manual work here and there..
I consider trying the cordless lithium-ion leaf blower, but since that one comes only with one battery, I am worried it may work only a few minutes - waiting for your reviews!