1. Ultra-compact & Light weight: 10050mAh high capacity and high energy density premium LG battery pack power bank to charge iPhone, Samsung, LG, Nintendo Switch and tablets at maximized power charging speed. Our special round curve and fashionable diamond edge cut design with 3 high energy density LG premium cells (most others use 4 cells) makes this power charger one of the most compact power bank and ultra light weight among 10000mAh range power chargers in current market. 2. Qualcomm certified Quick Charge 3.0 Input/Output two way system: (Most others only have Quick Charge Output function) : This Z1 charges compatible devices up to 80% in just half an hour. Backwards compatible with all versions of Qualcomm Quick Charge. NonQuick Charge devices also charge at its max-speed allowed. 3. Intelligent TI chip safety system provides comprehensive protection to keep you and your devices safe. The 10 highlights are as follows: 1.Battery pack protection 2. Auto Shut-off Sleep Mode 3.Quick charge 3.0 Input Voltage Surge Protection 4. Output Current Limiter 5.Quick charge Low Voltage Protection 6.Power bank Short Circuit Protection 7. Output Voltage Surge Protection 8.Power bank Output Current Stabilizer 9.Power charger Overload Recovery 10.Battery pack Temperature Control. 4.Highlight Features: It’s a safer portable usb battery back power bank if compared with normal ones by using fire-proof case. 4 LED indicators clearly show the remaining power. What You Get: Hercules Z1 Ultra-compact 10050mAh with Quick Charge 3.0 power bank cell phone charger, Nylon Braided Micro USB Data cable, User Manual. 5. We are the manufacture of this product, and we have 100% customer satisfaction guarantee on the product we sell. As a leading provider of portable chargers, we offer worry free shopping experience with no question asked return/refund policy and with the return shipping paid by us. Please in contact with seller for refund and replacement. We provide 12-months warranty and problem solving customer service.