Does the Rubik's Connected come pre-charged? Particula Help Center October 20, 2020 11:41 Updated Yes! We still recommend charging the cube before first use (should take approximately 2 hours), just because we know you won’t be able to put it down after you start playing with it 😊. Related articles How do I turn the cube on/off? My Rubik's Connected won't charge or work at all. I can’t see my Rubik's Connected cube in the pairing screen Battery and Charging Recommendation How do I know how much battery I have left? Comments 0 comments Article is closed for comments.