The Oral-B White Pro 1000 is a rechargeable electric toothbrush.
There is a red light that is appearing at the top. Does that mean a battery needs to be charged? If so how do I find it?
If the top light is red it means that the rechargeable battery is low and needs to be recharged.
Here’s a link to the user manual for the toothbrush.
Go to the Section entitled Connecting and Charging for more information
If the red light appears on the top of the toothbrush, you might have a slightly different model with a pressure sensor LED.
See here: Is the Pressure Sensor Broken?