(Note: Compatible Samsung Galaxy s8 ONLY) Powerful 4500mAh Li-polymer rechargeable battery case can effectively provide 100%+ extra battery life for your Galaxy S8, which is equivalent to add 24 hours talk time or 16 hours web browsing time. 360° comprehensive bumper design and hard-shell backplate, the Trianium Atomic Pro Fast Charging Portable Charger protects your Galaxy S8 from scratches and other daily wear and tear, yet small and convenient enough to fit easily in your hand or in your pocket. Featuring Quick-charge sync-through technology, the battery case allows you to sync your computer without having to remove the case. Simultaneously charge your samsung S8 and battery case together with your original Samsung Stock type-c cable/adapter.

【200%+ MORE BATTERY LIFE】The powerful 5000mAh Li-polymer rechargeable battery case provides extra 28 hours talktime, 80 hours music time and 26 hours video time, fits well for iPhone 7/8. With portable design, charging anytime and anywhere. 【PROTECTIVE CHARGING CASE】The charger case is not only a portable charger, but also a protection for cellphone from scratches and other daily wear and tear. Internal high quality chips also protect your smart phone from overheating, short-circuiting and over charging. 【EASY INSTALLATION & SYNC TECH】Carefully insert the battery connector to the charging interface, and press cellphone into the case, easy to charge your phone by short pressing the power button. It supports syncing data to your Macbook, PC or laptop and charging your cellphone simultaneously without removing it.