Cameron & Co DS-CS-MUM900SL 3200mAh cell phone battery

Replacement Battery for Xiaomi Mi 9

This Cameron Sino DS-CS-MUM900SL cell is a direct replacement for the Xiaomi Mi 9 models M1902F1A, M1902F1G and M1902F1T. It uses a lithium-polymer chemistry rated at 3.85 V and 3200 mAh for 12.32 Wh of capacity. The pack measures 76.54 x 61.30 x 3.82 mm and comes in black. It arrives new and 100 percent OEM compatible.

Suited to owners restoring original runtime

The battery fits the three listed Mi 9 variants and matches the original BM3L form factor, making it suitable for users whose phones no longer hold a charge through a day. Buyers with other Xiaomi handsets or those needing a higher-capacity extended pack should look at something else because this unit is dimensioned for the standard Mi 9 cavity only.

Steady output under continuous use

Lithium-polymer construction delivers a stable voltage curve during prolonged sessions such as video streaming or navigation, avoiding the sharp drops seen in aged cells. The 12.32 Wh rating supports typical mixed workloads without excessive heat buildup. Capacity remains consistent over repeated cycles when the phone's power management is functioning correctly.