IMPORTANT NOTEThis portable battery case is only compatible with iphone 6s Plus /6 Plus / 7 Plus / 8 Plus, not for iphone 6 / 7 / 8 / X / XS. And it can not support Car Charger, High Voltage or Quick Charge Adapters. It is recommended to use your original cable to charge the battery case to avoid incompatibility problems. HIGH CAPACITY&LONG LIFE: With huge capacity design, this battery case has more than 150% power for your iphone 6 Plus / 7 Plus / 8 Plus, 8500mAh rechargeable battery case can offer you extra 17 hours talk time or 13 hours web browsing time, ensure your iphone will have the enough power during traveling or working outside.4 blue indicators show the power left as 25% – 50% – 75% – 100%. Charging Case And Protect This iPhone 6 Plus / 7 Plus / 8 Plus battery case with scratch-guard, can protect your iPhone from scratches and other daily wear and tear. The intelligent power charging Protection system could protect against the battery case and your phone from over-current, over-charging, and over-heating for safe and reliable fast charging. EASY TO CHARGE, AND SYNC: Just plug your original iPhone charging cable into the charger case, then your battery case and phone can be charged simultaneously. Also you can sync your iPhone 7 Plus / 8 Plus / 6 Plus / 6s Plus to your MacBook, PC or laptop without removing the battery case. PACKAGE INCLUDING: 1 piece iphone 6 Plus / 7 Plus / 8 Plus Battery Case + 1 piece User Manual. if you have any question, please kindly contact us.