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https://www.philips.co.uk/c-p/PTA518_00/active-3d-glasses/support Support for your Active 3D glasses Active 3D glasses PTA518/00 | Philips active 3d glasses support for 00 philips https://www.philips.co.uk/c-p/PTA517_00/active-3d-glasses/support Support for your Active 3D glasses Active 3D glasses PTA517/00 | Philips active 3d glasses support for 00 philips https://www.philips.co.uk/c-p/PTA516_00/active-3d-glasses/support Support for your Active 3D glasses Active 3D glasses PTA516/00 | Philips active 3d glasses support for 00 philips https://www.philips.co.uk/c-f/XC000010443/what-is-the-lifetime-of-the-battery-in-the-active-3d-glasses What is the lifetime of the battery in the Active 3D glasses? | Philips The power for the Active 3D glasses is supplied by one CR2032 battery, which lasts approximately 200 hours. Arrange the glasses back in the supplied black bag... active 3d glasses what is lifetime