Restores full battery power to a 9505A/9555 Satellite Phone from any operating vehicle. Enables use of the 9505A Satellite Phone while recharging battery. Battery Charge Time to 90% capacity is 3 hours when charged in a 9505A Satellite Phone at 25°C (77°F). For optimum performance only charge your battery between 0°C (32°F) and 40°C (104°F). Fast charge will be complete in about 3 hours 15 minutes.