Xiaomi BN46 battery

The BN46 is a rechargeable lithium‑ion / lithium‑polymer battery used as the internal power cell in certain Xiaomi Redmi series smartphones, including Redmi 7, Redmi Note 8, Redmi Note 8T, and similar models

Specifications

• <p class="ql-align-center"> <strong>Specification</strong></p><p class="ql-align-center"> <strong>Details</strong></p><p> Battery Model</p><p> BN46</p><p> Battery Type</p><p> Rechargeable Lithium‑Ion / Li‑Polymer (Li‑Po) &nbsp;</p><p> Capacity</p><p> ≈3900 mAh – 4000 mAh (varies slightly depending on seller and exact version) &nbsp;</p><p> Energy</p><p> ≈15.0 Wh – 15.4 Wh (typical energy based on capacity × voltage) &nbsp;</p><p> Nominal Voltage</p><p> 3.85 V standard for smartphone Li‑ion/Li‑Po cells &nbsp;</p><p> Max Charge Voltage</p><p> ~4.40 V (common safe charging limit) &nbsp;</p><p> Cell Configuration</p><p> Single‑cell stack (flat pouch type) &nbsp;</p><p> Color</p><p> Black (typical casing color) &nbsp;</p><p> Origin / Quality</p><p> OEM or high‑quality replacement; certifications such as CE, RoHS, FCC often included on quality units &nbsp;</p><p> Installation</p><p> Internal battery — requires opening the phone; professional installation recommended &nbsp;</p><p> </p>