$11.99 each.

Check the iPhone model before order.
6000 mAh for iPhone 6 / 6S - red color
6800 mAh for iPhone 11 (6.1”) - black color 
6500 mAh for iPhone 11 Pro Max (6.5”) - black color
6800 mAh for iPhone 14 (6.1") - black color Product Details: Input: DC 5V-1.5A(MAX) Output: DC 5V-1.0A(MAX) Charging Time: 5 hours Battery Type: Lithium-polymer battery, with CE and RoHs certification How to Charge: 1/ Plug-in-Play, just connect your iPhone original cable to the battery case, then will charge; 2/ There are 4 LED lights indicators to show power capacity, each LED light means 25%; 3/ Press the back smart switch for 3 seconds to start charging the iPhone, and press 3 seconds to stop. Important Notes: 1/ Do not support the Carplay, High Voltage or Quick Charge Adapters 2/ This iPhone battery case is manual, not automatic 3/ Not support wireless charging 4/ No charging cable, Not waterproof 5/ Can charge the battery case and the iPhone at the same time Package Includes: 1 x Battery Case for iPhone (cable is NOT included) 1 x User Manual