I've only had good experiences with keeppower cells. The only protected 18650 cells I buy anymore are from them. As far as chargers go; if you are looking for the best, take a look at the SkyRC MC3000. I think that should still be the best charger on the marked today for round cells. It's not easy to use however, and I can't be bothered struggling with that thing. But if you've got a PhD in electronics or programming, you are gonna get along with it just fine! :thumbsup: