iPhone 6 Plus Battery Case, Rhidon 4500 mAh Power Bank Case Rechargeable Protective Battery Charging Case for Apple iPhone 6S Plus (5.5 inch) (Gold) LARGE CAPACITY: The powerful 4500mAh Li-polymer rechargeable battery can effectively provide 100%+ extra battery life to your iPhone 6/6S Plus, which is equivalent to add 18+ hours talk time or 14+ hours web browsing time. SAFE CHARGE: Integrated circuit design ,effectively avoid shorting circuit or overcharge even under extreme condition of wrong operating . SMART CHARGE: Charge and discharge at same time . Press the button to charge for phone first, and after full charge, it will be smarted changed to charge for backup battery. it will be automatic power down after power saturation . INCREDIBLY SLIM: This case is the thinnest iPhone 6 Plus battery case on Market (adds only 0.18in), minimizes bulk and provides easy access to all functions, controls, speakers and cameras. PRACTICAL DESIGN: Its shell used Piano paint process or scrub treatment,high-end and very nice hand feeling. The holder function is a very special sweet design, it allows us watch film and charge at same time !