Instruct: Classify Amazon reviews into positive or negative sentiment
Query: battery fixed!

I've owned 2 of these batteries for about 3 years. One died today, and I wasn't able to charge it. I tried "jumping" it with a 9 volt and it charged perfectly! Great idea. saved me the cost of a new one. ...just make sure you're making good contact for about 30 seconds. ..it took me a couple of tries, but all is good again.