PowerShadow i4 Review

Spyder’s PowerShadow i4 is so designed to make life a little simpler. The built-in smart technology intelligently enhances your iPhone’s power for maximum performance and reliability.  From a test conducted, it’s reported that i4 boasts a built-in 2000mAh battery pack which can charge a fully drained iPhone 4S to between 75 to 80 percent of