Instruct: Classify a review into positive or negative sentiment.
Query: Batteries fail

I love Makita tools, but these 18 volt batteries have a serious design flaw. They work well, charge quickly but will fail to charge and need to be thrown out way too early. In a little over a year, the battery would no longer charge. Makita says that the problem occurs with home users who let the battery run all the way down. I never let them run all the way down, and I had 2 fail. Makita is in serious denial. The home users of other batteries have no where near the problems. Read the Amazon reviews. I have never seen so many complaints about batteries. I am stuck with 6 Makita tools that are powered by expensive, deeply flawed batteries. Since Makita refuses to recognize the problem, no solution is in sight. Buy other tools.