How long does it take to fully charge PIE? Bagel Labs May 14, 2018 08:53 Updated Follow PIE comes with a micro USB cable to charge, which typically takes 3-5 hours. Related articles How long does the battery last? How does the PIE connect to smartphone app? When does PIE turn off automatically? What does the PIE app look like? What couriers do you use for shipping? Comments 0 comments Please sign in to leave a comment.