The iphone 55s power case is equipped with a 2000 mah lithium polymer battery to fully charge your iphone 55s and provide up to 9 hours of additional talk time the led battery indicator shows charge and discharge status and the sleek design and easy grip exterior give it a great feel its onoff switch preserves power and allows you to keep the case on your phone when not in use you39ll also have full access to all controls and ports the earphone jack port provides complete access even for l sha