Instruct: Classify Amazon reviews into positive or negative sentiment
Query: makita sweeper battery

If you buy a Makita Cordless sweeper, buy this extra battery. That way when one runs down, you have this back up battery to slip into place and can keep going. Also this battery has a longer run time. I'm glad my husband suggested the second battery. It's like having a cordless drill, when your battery does down, you need a second to be fully charged so you can continue with your project without having to wait for a recharge.