Lab Tests: How long does the iPhone 5's battery last? | Macworld
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iPhone 5S battery life detailed | iMore
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How to make your iPhone's battery last as long as your old Nokia | by Nathan Jeffery | Black Plunger | Medium
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Why does my iPhone 5s battery suddenly drop from 43% to 20% and then 10% suddenly? Is this battery to be replaced or is there something other malfunctioning? - Quora
iPhone battery life: Apple promises iOS5 update to address 'bugs' | iPhone | The Guardian
iPhone 5s battery capacity 10 percent up on iPhone 5, 5c up 5 percent - 9to5Mac
iOS 10 is a pleasant surprise for the iPhone 5 and 5C | Ars Technica
Amazon.com: mophie juice pack Helium for iPhone 5/5s/5se (1,500mAh) - Green - JPH-IP5-GRN : Everything Else
10% bigger battery in iPhone 5s to boost talk, LTE use times by 2 hours | AppleInsider