lasted good for 5 months, but midway through brushing my teeth, and it just fully died on me. Left it on the charger for a day figuring it was a dead battery, and saw the light indicating charging lit up so I now it was connected, however when I went to test it out it just refuses to work. The lights indicating what mode its on is lighting up, but the brush head just refuses to function. Rather disappointed when it advertises a year of use with the fact it comes with the replacement heads and only managed to get under half the advertised time