iPhone 6S review: a very good phone ruined by rubbish battery life, Apple

Apple’s latest iPhone has a better camera, pressure sensitive 3D Touch screen, faster processor and quick fingerprint sensor, but lives fast and dies before bed

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iPhone 6S review: a very good phone ruined by rubbish battery life, Apple

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IPhone 6s, max capacity 81% and battery still dies in 1 hour, bad battery? Grandma owned phone since it was bought new. : r/mobilerepair

Apple admits slowing older iPhones because of ageing batteries, Apple

Battery Case for iPhone 8/7/6/6S/SE(2022/2020),[7000mAh] Ultra-Slim Battery Charging Case, Rechargeable Protective Extended Battery Charger Case for iPhone 8/7/6S/6/SE(3rd&2nd Generation)-Purple : Cell Phones & Accessories

When to replace an iPhone battery - iPhone Repair Base