* Lenovo Chromebook Duet 5 battery AC charger. * This battery power adapter charges Lenovo Chromebook Duet 5. * Advanced CMOS microcontroller chip manages the charging process for safe, rapid and reliable battery charging. * Include a free British standard type G power plug and socket convertor adapter for customers in the United Kingdom region. * Power off automatically when Lenovo Chromebook Duet 5 battery is fully charged.