Use Low Power Mode to save battery life on your iPhone - Apple Support
Apple says iPhone 6s and 6s Plus battery life may vary 2-3% regardless of Samsung or TSMC chip - 9to5Mac
iPhone Battery and Performance - Apple Support
iOS 12.3.1 Improves Battery Life of Older iPhones
Apple responds to battery life concerns with its A9 SoCs - ExtremeTech
Apple iPhone 6s vs iPhone 6 - Battery life and Conclusion - PhoneArena
iPhone 6S review: a very good phone ruined by rubbish battery life | Apple | The Guardian
Best Buy: Apple Smart Battery Case for Apple® iPhone® 6 and 6s White MGQM2LL/A
iPhone - Bad news for ANYONE with iPhone 6 battery life problems | Express.co.uk
Exchangeable Battery for iPhone 6S+/6+, iPhone 6S/6?
iPhone 6 Battery - iFixit
iPhone Battery and Performance - Apple Support
Battery for iPhone 6 Plus | Replace iPhone 6 Plus Battery
Battery Life and Charge Time - The Apple iPhone 6s and iPhone 6s Plus Review
I'm getting two-day battery life from my iPhone -- Here's how - SlashGear
Samsung vs. TSMC: Comparing the battery life of two Apple A9s | Ars Technica
One spec Apple didn't improve in iPhone 6S: Battery life - CNET
iPhone 6S Plus – Battery Life, Verdict Review | Trusted Reviews
Apple Smart Battery Case for iPhone 6S review: Apple's answer to iPhone battery life: Slap a case on it - CNET
Unexpected shutdown iPhone 6S - Battery problems might be BIGGER than expected | Express.co.uk
Apple extends iPhone 6 battery life with rechargeable case
Battery Life and Charge Time - The Apple iPhone 6s and iPhone 6s Plus Review
How long does the battery last on the iPhone 6? - Quora
