I've got a Black & Decker 18 V weed hog. Works well, one battery charge does my yard, (small yard but I have a privacy fence I trim around). It's 4 years old and I just now had to replace one of the batteries, it comes with 2 batteries. I've got no complaints and you can get one on sale for about $90.
hows the feed on it?
does it spit line eay? easy to put fresh line in?