Ecoh M-288 Cordless Vacuum Replacement Battery 14.4V 3000mAh

Ecoh M-288 — 14.4V Ni-MH Replacement Battery

This is a 14.4V, 3000mAh Ni-MH replacement battery for the Ecoh M-288 cordless vacuum cleaner. It fits directly into the M-288 and restores cordless suction when the original cell has degraded. Capacity is sourced from verified product data at 43.2Wh.

• M-288 platform fit: The M-288 runs a 14.4V motor bus with a Ni-MH pack that matches the physical dimensions and connector orientation of this cell — 179 × 51 × 52mm. The voltage rail and pack format are fixed to this vacuum's motor and charge circuit, so the replacement must match both to seat and communicate correctly.
• Bench tested on actual hardware: We cycled this pack through load conditions matching the M-288 motor draw. The BMS handled sustained suction load without nuisance trips, and the charge circuit accepted the pack without faults on a standard M-288 charger.
• Dock charge discipline on the M-288: Do not leave the M-288 sitting on its charging dock permanently. Ni-MH cells in cordless vacuums on continuous trickle charge lose usable capacity faster than cells cycled normally. Charge the pack fully, then remove it from the dock until the next use.

Cordless vacuum losing suction before the battery indicator reaches low

This is a voltage sag issue, not a capacity issue. When the M-288 motor pulls current against a restriction — a blocked filter, a clogged brush roll, or heavy carpet — the pack voltage drops under load faster than the indicator circuit can track. The indicator reads resting voltage, not loaded voltage. Clean the filter and check the brush roll for blockages before assuming the new battery is faulty; a clear airpath reduces motor draw and keeps the pack voltage stable through a full cycle.

M-288 motor cuts out mid-use and then recovers after a short pause

This is a BMS overcurrent trip, not a defective battery. When airflow is restricted, the M-288 motor works harder to maintain suction and draws current beyond the pack's rated output threshold. The BMS shuts the cell down to protect it, then resets once temperature drops and current demand clears. Check and clean the filter first — if the cutout stops after clearing the restriction, the pack is functioning correctly. If it continues on a clean filter, verify the charger brought the pack to a full 14.4V resting charge before use.