Instruct: Classify Amazon reviews into positive or negative sentiment
Query: LAST TWO HOURS ONLY/RETURN NOT ALLOWED

I charge this thing for like two days and it can only last 2 hours. It never tell whether the battery is full or not. I definately wont take it for camping it's not reliable at all.Another thing is this latern is not allowed to return to Amazon.com. You will have to take it to local disposal to dispose it.Customer service is nice though.