Dualtron Main Switches which provide functionality for switching off power and preventing the scooter from being turned on from the Throttle. This button is being mitigated in newer models. Its secondary function is to switch between scooter main power supply from the built in battery and the Range Extender provided by Minimotors. However, both this switch and the Range Extender are being mitigated from the Dualtron Range. There are still models with a removable internal battery, such as the Storm, Storm Up, Storm New and City and City New Models.