Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worked fine - for 6 months.

I bought this unit last spring and used it for trimming grass in areas where I didn't want to use the standard cord-trimmer. Had reasonable power and was nice to use, until the NiCd battery died in the fall (after using it once a week). Bought a new manufacturer's battery for it, and that worked once in the fall. Battery is dead again this spring.If you buy it, get an extended warranty that covers the battery. I will try a Worx this time, and see if its Lion battery lasts longer.