The Iridium Extreme (9575) Hi-Capacity Battery is designed to be charged while inside the Iridium Extreme (9575) Satellite Phone. The Extreme (9575) Hi-capacity battery is compatible with all Beam Extreme (9575) docking solutions.
To install a new Extreme (9575) Hi-Capacity battery as a replacement or spare, remove the current Extreme (9575) standard battery by lifting the top latch and pulling the battery forward. Install the new battery and it is recommended to charge for a minimum of 3 hours prior to use.