How can I charge up the battery? Babolat March 15, 2018 13:43 Updated Follow Make sure you use a USB compatible charger to charge your racket: Plug the USB cable into your laptop or into a plugged compatible USB charger Then plug it into your racket. Related articles How long does it take to fully charge my battery? Yellow Light My racket doesn't switch on, why? How will I know if my battery is fully charged? What type of battery is used in Babolat PLAY racket? Comments 0 comments Article is closed for comments.