Ambrogio Robby 14.4V Ni-MH Replacement Battery 2000mAh

Ambrogio Robby Series — 14.4V Ni-MH Replacement Battery

This is a 14.4V 2000mAh Ni-MH replacement battery for the Ambrogio Robby, Robby Deluxe, and Robby Home XR robotic vacuum cleaners. It slots into the same battery bay as the original and runs on the same voltage rail. Capacity figures are from the product specification — 2000mAh / 28.8Wh.

• Robby, Robby Deluxe, Robby Home XR compatibility: All three models use the same 14.4V battery format and share the same connector and physical housing dimensions (179 x 51 x 52mm). A single replacement cell covers the full Robby range without modification.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the Robby platform. The BMS responded correctly to both charging input and motor draw under load on hard floor and carpet transitions. No unexpected cutoff events were recorded.
• Dock charging practice for Ni-MH cells: Do not leave the Robby sitting on the charging dock permanently between cleans. Ni-MH cells on continuous trickle charge develop capacity fade faster than cells charged only when depleted. Charge to full, then remove the unit from the dock.

Cordless vacuum losing suction before the battery indicator reaches low

Ni-MH cells show a gradual voltage drop under sustained motor load as they age. On the Robby, this means the motor loses drive voltage before the indicator registers a low-battery state. The indicator reads remaining charge, not the cell's ability to sustain voltage under the motor's actual current draw. A replacement cell restores the flat discharge curve Ni-MH chemistry is rated for, keeping motor speed consistent through most of the cleaning cycle.

Motor cuts out mid-cycle and then recovers after a few seconds

This is a BMS overcurrent trip, not a motor fault. It happens when restricted airflow — usually a partially blocked filter — forces the motor to draw more current than the BMS threshold allows. The BMS trips, the motor stops, the cell voltage recovers, and the robot restarts. Clean or replace the filter first. If the cutout continues with a clean filter on a new battery, the cell voltage under load may be dropping below 12V — check with a load tester.