Its 2850mAh capacity battery is said to extend the life of your iPhone 6 by 140%. MFi Apple Certification means it’s safe and reliable to use. Anker notes that this case “more than doubles your iPhone’s battery life without doubling its size (adds only 0.23in & 2.9oz).” Early reviewers rate it 4.7 out of 5 stars. It’s worth noting that it includes a 18-month warranty.
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