A:Answer The Slim Folio uses replaceable coin cell battery to power your keyboard. Thanks to a smart-power management system, use Slim Folio for up to 4 years without needing to replace the batteries. Slim Folio uses advanced Bluetooth® LE wireless for reliable, energy-efficient connection that won’t drop between the iPad and keyboard. Simply set up your connection once, and your keyboard will automatically connect every time you click your iPad into Type Mode. The case will not drain the iPad battery. - Will, Logitech.
