TCL R1 Cordless Vacuum Replacement Battery 14.4V 2000mAh

TCL R1 / R2 / R3 Cordless Vacuum — 14.4V Ni-MH 2000mAh Replacement Battery

This is a 14.4V Ni-MH battery pack rated at 2000mAh (28.8Wh), built to fit the TCL R1, R2, and R3 cordless handheld vacuums. It slots directly into the battery compartment and connects to the onboard charging circuit. Capacity figure is from the product specification — 2000mAh at 14.4V.

• R1, R2, and R3 compatibility: All three models run the same 14.4V battery platform with an identical connector and charge circuit, so one cell works across the series. The voltage rail and cell count are uniform across R1 through R3.
• Bench tested on actual hardware: We ran this pack through the TCL charge circuit and monitored BMS behaviour at full draw. The cell accepted a full charge cycle without tripping the overcurrent cutoff, and voltage held steady under sustained motor load.
• Dock charging habit for Ni-MH cells: Do not leave the vacuum sitting on the charging dock continuously. Ni-MH chemistry is particularly vulnerable to trickle charge damage — charge to full, then remove the unit from the dock until the next use.

Suction dropping before the battery indicator reaches low

This happens when the motor pulls more current than the cell can sustain at its current state of charge, causing voltage to sag under load even though the indicator still reads mid-level. A partially blocked filter is the most common trigger — restricted airflow forces the motor to work harder, spiking current draw. The BMS reads that sag as a low-voltage condition and begins throttling output. Clear the filter first, then check whether the symptom persists.

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

This is a BMS overcurrent trip, not a dead battery. When suction is restricted — blocked nozzle, clogged filter, or hair wrap on the brush roll — the motor draws a surge of current that crosses the BMS threshold and triggers a brief shutdown. The pack resets itself once current demand drops, which is why the vacuum restarts after a short pause. Fix the blockage first; if the cutout continues with a clear airway, check resting voltage at the terminals — it should read at or above 14.4V on a full charge.