Apparently I have a new model now and when I tried it the first time I was soo annoyed by that flickering blue light, as with my first Hopper this would vaguely indicate trouble and would like initiate hot backend, short battery life and so on. Not this time. I googled it, found it's supposed to be normal with the "new" units and everything's fine (til now). I get a solid 3 bowls per battery and only have warm backend after several draws. I'm loving it, but frankly speaking, wouldn't be really surprised if it went to sh!t anytime soon. As I said: my current mindset is that I enjoy the time we have together and have some backup if it happens. In an earlier post I mentioned my new Hopper did not have this bug/feature of heating up when you just move the clicker a few mm so it gets contact. Seems it's a bit different than I thought. I let my new Hopper lie on the table til the lights got out and there this bug/feature was again. As I wrote earlier, I'm not too fond of that in general. So without thinking too much, I just clicked it to turn it on, and waited until it shut down again, and was back to what I wanted: no heating up without a massive click on purpose. All hail the new backend!