Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Lousy battery life

I have two Makita lithium ion combo drill/driver sets-- one less than a year old. I am a contractor and use the tools everyday. I like the drill/drivers but the batteries konk out way too fast. I had 3 out of 4 batteries go bad over a course of a week. Now I am stuck with buying a couple expensive replacements or just trashing the tools.