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The BLP775 is a Li-ion smartphone battery model used in certain OPPO and related (Realme) devices. It is designed as a replacement battery unit with a nominal voltage of about 3.87 V and a capacity of about 4100 mAh (≈15.86 Wh) according to multiple retailer listings. It is typically marketed for compatibility with the Realme X50 (which shares hardware ecosystems with OPPO) and other similarly coded devices.
Model Code BLP775 Type Lithium-Ion (Li-ion) Nominal Voltage ~3.87 V Capacity ~4100 mAh / 15.86 Wh Color (listing) White Compatible Models Realme X50 (and by extension OPPO related) Certifications CE, RoHS, UL (as claimed by retailers) Alternate/Cited Capacity Some listings suggest “4200mAh” for BLP775 in a general spec table.