Your Colgate Smart Electronic toothbrush is supplied with an induction charger. Recharge the battery (LED shows yellow or red) by connecting the charging station to an outlet, then place the brush on top of the charger. It will recharge on contact (LED will blink green). After 1 hour the light goes off when the toothbrush is on the charger for energy savings purpose.
A solid green LED light indicates you have 50% or more of battery power.
A complete charge takes approximately 12 hours.