The time it takes to charge your Oral-B electric toothbrush depends on the model you have.
For Oral-B iO 7 Series and higher it takes 3 hours. For iO 6 Series and lower up to 16 hours. For Genius and Smart range and Pro 3 it takes 12 hours. For our Vitality toothbrushes, it’s up to 22 hours.
All our toothbrushes apart from the Vitality and Kids models have a charging light. It should blink during charging. Note that this can take up to 15 minutes to start happening if the toothbrush was entirely drained of battery during brushing. When charging is complete, the blinking should stop.
The information above and more can be found in the user instruction manual and if you don’t have this available, you can find it online at service.oralb.com.