I live in casino town and lots of people buy stuff on credit card and pawn it for $$$ for the slots.
So, I got lucky and picked up, at a local pawn shop a new Black & Decker, 18V, complete with charger and extra battery.
Bought it sort of on a lark...it has surprised me immensely.
I use it to trim the crepe myrtle bushes and cut the limbs from lower portion of my yard trees. Works fine for about an hour or so and I just change batteries and keep on cutting.
I suppose you could buy one of the top of the line expensive models with longer run time...but...for $25..I am quite pleased!
Good Luck,