The BM4W battery is a high‑capacity internal battery designed to replace the worn‑out original in the Xiaomi Mi 10T Lite 5G model.
Specifications
Battery Model
BM4W (replacement part number)
Battery Type
Rechargeable Lithium‑ion Polymer (Li‑Po)
Capacity
4720 mAh (some listings also note ~4820 mAh depending on source/version)
Energy
~18.2 Wh
Nominal Voltage
3.85 V
Maximum Charge Voltage
Around 4.40 V (typical charging limit)
Chemistry
Lithium‑ion / Li‑ion polymer cell
Condition
Brand‑new replacement battery (aftermarket/OEM grade)
Color
Typically Black
Certifications
CE, UL, RoHS, ISO safety certifications (varies by seller)
Compatible Devices
Xiaomi Mi 10T Lite 5G (primary compatibility) — battery used as the internal power source; some sellers also list compatibility with Mi 10i 5G and similar variants using the same part number BM4W
Installation
Internal battery — non‑removable design; professional installation recommended unless you have experience with smartphone repairs
Warranty & Service
Many retailers offer 12‑month warranty and 30‑day return policies (seller dependent)
