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iPhone XS and XS Max Have 4GB of RAM, XR Has 3GB; XS Max and XR Have Larger 3,174 and 2,942 mAH Batteries - MacRumors
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iPhone XS and XS Max Smart Battery Case contains 10.1Wh battery, 13% larger capacity than previous cases - 9to5Mac
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Battery for iPhone Xs Max, 4300mAh Upgraded Wavypo High Capacity New Version 0 Cycle Battery Replacement for iPhone Xs Max A1921 A2101 A2102 A2104 with Full Replacement Tool Kit and Instruction : Cell Phones & Accessories - Amazon.com
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Amazon.com: Battery Case for iPhone Xs Max, Upgraded 10000mAh Slim Portable Protective Charging Case Compatible with iPhone Xs Max (6.5 inch) Rechargeable Battery Pack Charger Case (Blue) : Cell Phones & Accessories
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Amazon.com: Battery for iPhone Xs Max, 4300mAh Upgraded Wavypo High Capacity New Version 0 Cycle Battery Replacement for iPhone Xs Max A1921 A2101 A2102 A2104 with Full Replacement Tool Kit and Instruction :
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