5Safety and usage information• Never place batteries or devices on orin heating devices, such as microwaveovens, stoves, or radiators. Batteriesmay explode when overheated.• Never crush or puncture the battery.Avoid exposing the battery to highexternal pressure, which can lead to aninternal short circuit and overheating.Avoid interference with pacemakersMaintain a minimum of 15 cm (6 inches)between mobile devices and pacemakersto avoid potential interference, asrecommended by manufacturers and theindependent research group, WirelessTechnology Research. If you have anyreason to suspect that your device isinterfering with a pacemaker or othermedical device, turn off the deviceimmediately and contact themanufacturer of the pacemaker ormedical device for guidance.Turn off the device in potentiallyexplosive environmentsDo not use your device at refuellingpoints (service stations) or near fuels orchemicals. Turn off your device wheneverdirected by warning signs or instructions.Your device could cause explosions or firein and around fuel or chemical storageand transfer areas or blasting areas. Donot store or carry flammable liquids,gases, or explosive materials in the samecompartment as the device, its parts, oraccessories.Reduce the risk of repetitive motioninjuriesWhen sending text messages or playinggames on your device, hold the devicewith a relaxed grip, press the keys lightly,use special features that reduce thenumber of keys you have to press (suchas templates and predictive text), andtake frequent breaks.