My riva battery died today. It blinks when you screw a cartomizer in, and lights up when you push the button with the cart in, but it doesn't light up at all without a cart, and it doesn't fire the cart at all. I lifted up the battery post and it didn't help. I got it exactly 2 weeks ago. I was getting ready to place another order today anyway, so maybe I could get it replaced and shipped with my new order? Or I could just send it in. Whatever works for you.