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New Genuine P21GK3 Battery For Microsoft Surface Windows RT 1st Gen 1516 10.6'' Tablet PC 7.4V 31.5WH 4120MAH (21CP4/106/96) - AliExpress
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Amazon.com: CQCQ P21GK3 Battery for Samsung Microsoft Surface Windows RT1516 Tablet 21CP4/106/96 RT 1516 Series Notebook RT RT 1ST Model 1516 (7.4V 31.5Wh/4120mAh) : Electronics
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