It looks like you’re looking for an original replacement battery for the Oppo A1K model (CPH1923), specifically the 4000mAh (BLP711) battery. If you’re looking to purchase it, here are a few ways to find one:
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Oppo Official Store: Check Oppo’s official website or customer service for genuine parts, as they typically offer official accessories and replacement batteries.
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Authorized Service Centers: Oppo’s authorized service centers often carry original batteries for replacements. You can contact one of these centers to inquire about the BLP711 battery.
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Online Marketplaces: Websites like Amazon, eBay, or AliExpress may have the original BLP711 battery available for purchase. Just ensure the seller has good reviews and is selling an authentic product.
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Mobile Repair Shops: Local mobile phone repair shops may also have original parts for your device. Be sure to ask if the battery is an OEM (Original Equipment Manufacturer) part.
If you’re concerned about the authenticity or quality of the battery, it’s always safest to buy directly from official or authorized sources. Let me know if you need help finding specific sellers or stores!
