iPhone 6 Battery Case, [Apple MFi Certified] 3100mAh External Protective iPhone 6 Extended Charger Cases with Two Frames150% extra battery life 150% extra battery life : 3100mAh capacity quivalent to extra 65 hours audio, 18 hours 3G talktime, 14 hours video, 13 hours web browsing or 3 hours 3D gaming to your iPhone 6. Apple MFi Certified: Complete charge and sync compatibility with the iPhone 6. Transfer data or charge phone using the included Micro USB cable (no need to remove case). Cut outs for all the iPhone 6 features, use your iPhone without removing it from the case. Strong & durable engineering material protect your iPhone 6 from bumps & scratching. Protective IC circuit efficiently avoid short-circuit, over-charged and malfunction even under extreme conditions.