How can I charge up the battery? 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? What type of battery is used in Babolat PLAY racket? My racket doesn't switch on, why? How will I know if my battery is fully charged? My racket doesn't switch on, Why? Comments 0 comments Article is closed for comments.