Dreame T50 Mix Cordless Vacuum Replacement Battery 21.6V 4600mAh

Dreame T50 Mix — 21.6V Li-ion Replacement Battery (W2506-6S1P-BWA)

This is a 21.6V 4600mAh Li-ion battery for the Dreame T50 Mix cordless stick vacuum cleaner. It replaces OEM part W2506-6S1P-BWA directly. Fit this when the original cell no longer holds a useful charge or fails to power the vacuum at all.

• T50 Mix platform fitment: The T50 Mix uses a 21.6V 6-series cell arrangement with a BMS that manages motor inrush and thermal events specific to this vacuum's brushless motor. This replacement matches that cell configuration and connector pinout.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the T50 Mix platform. The BMS handshake completed correctly, the vacuum's battery indicator tracked accurately across the full discharge curve, and the overcurrent protection tripped as expected under a simulated blockage condition.
• Dock charging habit on the T50 Mix: Do not leave the T50 Mix sitting on its charging dock permanently. Continuous trickle charging on this platform accelerates capacity fade measurably faster than charging only when the cell is depleted. Charge to full and remove from the dock.

Suction dropping before the battery indicator reaches low

The T50 Mix motor draws significantly more current when the filter is partially blocked. The BMS reads this elevated draw as a voltage sag event and steps down power delivery before the fuel gauge registers low. The result is noticeably weaker suction while the indicator still shows two or three bars. Clean or replace the filter first — if suction restores immediately, the battery is not the cause. If the sag continues with a clean filter, the cell itself is losing its ability to hold voltage under load.

Motor cutting out mid-clean and then recovering after a few seconds

This is a BMS overcurrent trip, not a motor fault. On the T50 Mix, sustained restricted airflow forces the brushless motor to pull above its rated current ceiling. The BMS shuts the output rail to protect the cell, then resets automatically after a brief thermal pause. If this happens repeatedly, check the filter and the brush roll for hair or debris. A fully clear airpath will bring the current draw back within the BMS threshold and stop the cutout cycle.