I don't have the Lucid, so I can't comment specifically on it. My understanding, though, is that Android phones are "self-training" (like a fantasy dog ), and don't require any guidance from the user. The OS will simply gradually pick up the pattern of apps that you actually use, and load them into RAM in preference to ones you don't use. This may take a few weeks, so it may not be fully refined in two days.But I would hope that you would begin to see better battery life pretty quickly. I'm not an expert on that, though!