One thing I don't like about the spinner, and this is also with other Ego batteries, is that it has a 10 second cut-off. It already has a bright white light, and when you reach the cut off it flashes which can point attention towards you when your out places. Sometimes I find it cutting me off before 10 seconds. And if you have an atomizer that takes a little to get going this is a bit annoying. I like batteries with no cut-offs. If someone knows of a good ego style battery with no cut-off please let me know.