Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not Recommended

It's a great concept. Unfortunately, it didn't work that well for me. Even in the bright sunlight here in Colorado, I could only charge 2 NMH batteries at the same time. And it won't work through a window. Not very good for $110.Tech support? They have one guy, and you have to call the main switchboard - they don't have a tech support number. Good luck reaching him. I left him a message 3 days ago and never heard back. As far as I'm concerned, their tech support is non-existent.I returned mine.