This is a brand new replacement battery Chuwi 5059B4-2S1P for Chuwi FreeBook CWI557. All Chuwi 5059B4-2S1P are brand new,1 year Warranty, 100% Guarantee Quality and Fully Test! Each Chuwi 5059B4-2S1P Battery has passed a series of safety certifications, such as CE, UL, ROHS, ISO9001/9002. In order to protect your device and your safety, please rest assured to purchase our high-quality Chuwi 5059B4-2S1P batteries!
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