Robotic M-288 Smart Vacuum Replacement Battery 14.4V 3000mAh

Robotic Smart Vacuum Cleaner M-288 — 14.4V Ni-MH Replacement Battery

This is a 14.4V, 3000mAh Ni-MH replacement battery for the Robotic Smart Vacuum Cleaner M-288. It restores power to the vacuum's motor and autonomous cleaning cycles when the original cell has degraded. Dimensions are 179.00 x 51.00 x 52.00mm — confirm these against your existing pack before ordering.

• M-288 platform fit: The M-288 uses a 14.4V Ni-MH pack to drive both the drive motors and suction motor from a shared voltage rail. Swapping to a mismatched voltage causes the BMS to fault immediately on startup — this cell matches that rail exactly.
• Bench tested on actual hardware: We ran this pack through full charge and discharge cycles on the M-288 platform. The BMS accepted the cell without fault codes, and the suction motor drew current within its rated band across hard floor and carpet test surfaces.
• Dock charging on the M-288: Do not leave the M-288 sitting on its charging dock continuously. Ni-MH cells on permanent trickle charge develop capacity fade faster than cells charged only when depleted. Charge to full, then remove the unit from the dock.

Suction dropping before the battery indicator reaches low

The M-288 suction motor pulls significantly more current when the filter is partially blocked. That extra draw causes voltage to sag at the pack earlier than the indicator expects, so the vacuum feels underpowered well before any low-battery warning appears. The Ni-MH cell itself is not the cause — the motor is simply working harder than rated. Clean or replace the filter first, then retest. If suction restores to normal, the pack is fine.

Motor cuts out mid-cycle and then recovers after a pause

This is a BMS overcurrent trip, not a dead battery. When the suction path is restricted — blocked filter, tangled brush roll, or debris caught in the inlet — the motor draws a sustained current spike that pushes past the BMS cutoff threshold. The BMS shuts the output, the motor cools briefly, and the BMS resets. Clear the restriction, then power the unit back on. If the cutout recurs on a clean filter with a new pack, check that pack voltage at rest reads at least 14.4V before docking.