A high-performance battery of 5160mAh that extends the usage time of your Xiaomi Poco X3. Replace your old battery, and your smartphone will function like it did on the first day. The 5160mAh replacement battery is manufactured to the highest quality standards. Features and product specifications: Xiaomi Poco X3 BN57 replacement battery, 5160mAh battery capacity, safe charging thanks to overload and overheating protection. Guarantees the same performance as the original battery. High quality and durable.