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Does the 15-inch Surface Book 2 really have battery-drain issues? That depends ... | Windows Central
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Amazon.com: Atcuji 98SP 26800mAh External Battery with 140W Power Delivery for Surface Book 2 Laptop Power Bank Surface Pro X 7 6 5 4 3 2 Go iPhone iPad Samsung Galaxy Portable
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Synergy Digital Tablet Battery, Compatible with Microsoft Surface Book 2 Tablet, (Li-Pol, 7.4V, 2350 mAh) Ultra High Capacity Battery - Walmart.com
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