Iphone 8 plus vs 7 plus battery

- Iphone 8 plus vs 7 plus battery life
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- Iphone 7 plus vs 8 plus battery
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- Iphone 7 plus vs iphone 8 battery test
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- Iphone 7 plus vs iphone 8 plus battery drain test
- Iphone 7 plus vs iphone 8 plus battery charging test