S6 Battery Case, BEAOK 4200 mAh Ultra Slim Rechargeable Extended Charging Case Battery Pack Portable Backup Power Bank Case with Kickstand for Samsung Galaxy S6 (Black) Plug and Play Double Life: Built original new 4200 mA high-quality polymer batteries, Samsung mobile phones can be doubled battery life, enough power to remove your troubles. Charge and sync phone while refilling your battery at the same time. Quality batteries intelligent protection: imported batteries, with high energy density, no memory effect, high conversion rate, slow decay, long life and other advantages of high security features. Integrated circuit design with intelligent protection IC, can effectively prevent a short circuit or overtime charge, overcharge and over discharge even under extreme operating conditions, according to the fault errors, which can effectively protect your phone. Only for Samsung Galaxy S6, slim-fit battery casing chargers and protects your S6 withoue bulk.4200mAh rechargeable perfect fit your phone case, charging and protecting 2 in 1. Easily insert your Galaxy S6 into the mini USB output port. The Samsung S6 extended battery case uses a MicroUSB input port to enable recharging and data transfer. You can conveniently charge and sync both the Galaxy S6 battery case and Samsung Galaxy S6 to your Macbook, PC or Laptop without having to remove the Galaxy S6 battery case itself.