About the Lithium Ion battery

FlexCare is the first Sonicare toothbrush to use Lithium Ion battery technology.  Lithium Ion batteries are much lighter than equivalent batteries, more durable and have a low loss of charge when not in use. Your FlexCare toothbrush will last up to two weeks with normal brushing without having to recharge. Not only convenient for home use, this also makes FlexCare ideal for extended travel.

When you do recharge, you can be confident of a consistently higher energy life, since Lithium Ion batteries do not suffer from “memory effect” – a condition that causes some types of rechargeable batteries to hold less charge overall.