A new type of neurostimulators with an externally rechargeable battery has been developed recently. The manufacturer estimates the longevity of these devices to be 9 years. These products are in conformity with the essential requirements of Directive 1999/5/EC on Radio and Telecommunications Terminal Equipment and Directive 90/385/EEC on Active Implantable Medical Devices. Currently they have a CE mark only for the indication of DBS for Parkinson's Disease and Essential Tremor, but not for DBS for psychiatric disorders such as OCD. Therefore, up till now they cannot be used in patients treated with DBS for OCD.