No complaints at all. I like it so much more than the uni=pro as 510 carts screw in - there is no magnetic connector needed, and the cart itself is concealed. Great battery life, too. Hard to believe it is only 25 bucks.

I went in to look for a new battery since my wife permanently borrowed mine. Every time I walk through the door Frank and Joey are always there to greet my with a warm welcome and a smile. They listen to what I am looking, thoroughly explain my options and make sure I am completely satisfied with my purchase. It doesn't matter which of the three locations I visit, this company and the staff are the most friendly, knowledgeable people around. If you are in need, they are the ones to see! 10 out of 10 would always recommend! Great job Frank and Joey! You guys are the best! Thank you for all you do!