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Kindly please be advised the battery requires 30% of this capacity to run and convert voltage. Since similar competing devices by other manufacturers also require a similar percentage of capacity to function, 10000 mAh is a fair comparison figure. May your understand.
This battery has 18 months warranty, if there is any problem on it within the warranty, please email us at email@example.com with your Amazon order #, we will replace it for you at no cost (if we have available stock) or issue full refund to you per your preference.
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