Poco/Xiaomi X3 NFC BN57 4950 mAh 3.85 V Li-Ion Replacement Battery

High-quality replacement battery for Poco and Xiaomi smartphones

Full compatibility and reliability

The BN57 battery is fully compatible with selected Poco and Xiaomi X3 NFC smartphone models. Precise workmanship ensures easy and trouble-free installation, and modern lithium-ion (Li-Ion) cells guarantee stable and reliable operation of the device.

Safety and performance

The battery with a capacity of 4950 mAh and a voltage of 3.85 V (19.06 Wh) is characterized by low self-discharge, no memory effect, and high durability. Meets CE and RoHS standards, ensuring safe use in your smartphone.

Li-Ion Technology

Lithium-ion (Li-Ion) batteries offer high energy density, long life and resistance to self-discharge. They are ideal for smartphones, notebooks and other mobile devices requiring a reliable power source.

Technical data

• Model: BN57
• Technology: Li-Ion – no memory effect
• Capacity: 4950 mAh
• Voltage: 3.85 V
• Rated power: 19.06 Wh
• Number of cells: 1
• Dimensions (LxWxH): 8.9 × 6.4 × 0.5 cm
• Width: 6.4 cm
• Weight: 67 g
• Material: plastic / metal

Kit contents

• 1x BN57 4950 battery mAh

BN57 battery – reliable battery replacement, high performance and safe use