Cleanfriend M488 Cordless Vacuum Replacement Battery 14.4V 2000mAh

Cleanfriend M488 — 14.4V Ni-MH Replacement Battery

This is a 14.4V, 2000mAh Ni-MH replacement battery for the Cleanfriend M488 cordless vacuum cleaner. It restores power to the motor and cleaning system when the original cell has degraded or no longer holds a charge. No OEM part number is published for this model — match by fit model M488 before ordering.

• M488 platform fit: The M488 runs a 14.4V motor rail with a Ni-MH cell stack. This replacement matches that voltage and connector configuration. Swapping chemistry or voltage on this platform causes the BMS to reject the pack or the motor to run outside its rated draw range.
• Bench tested on actual hardware: We cycled this pack through repeated motor-start loads and monitored the BMS response. The overcurrent threshold held correctly across full-discharge cycles, and the cell stack balanced within expected parameters after three conditioning charges.
• Dock charging on the M488: Do not leave the M488 sitting on its charging dock continuously. Ni-MH cells on a trickle charge develop capacity fade faster than cells charged only when depleted. Charge to full, then remove from the dock.

Cordless vacuum losing suction before the battery indicator reaches low

This happens when a partially blocked filter forces the motor to draw more current than its rated load. The cell voltage sags under the extra draw, and suction drops even though the battery indicator still reads mid-range. The BMS sees the voltage dip but does not trigger a full cutoff — it just can't sustain the motor at full RPM. Clean or replace the filter first, then test suction across a full discharge cycle.

Motor cuts out mid-clean and then recovers after a short pause

This is a BMS overcurrent trip, not a dead battery. When airflow is restricted — usually a blocked filter or a jam in the brush head — the motor spikes its current draw and the BMS shuts the pack down to protect the cells. After a brief pause, the BMS resets and the vacuum runs again. Clear the blockage, check the filter for clogging, and confirm airflow is unobstructed before running again. If the cutout persists after clearing the blockage, measure resting pack voltage — it should read at least 15.6V fully charged on a healthy Ni-MH cell stack at this rating.