Pour Aspirateur Robot Autonome 14.4V Ni-MH Replacement Battery

Pour Aspirateur Robot Autonome — 14.4V Ni-MH Replacement Battery

This is a 14.4V, 3500mAh Ni-MH replacement battery for the Pour Aspirateur Robot Autonome robotic vacuum. It powers the drive motors, brush roll, and navigation systems that keep the unit running autonomously across hard floors and low-pile carpet. When the original cell degrades, suction drops and run cycles shorten — this cell restores normal operation.

• Robot Autonome platform fit: The Robot Autonome draws a fixed 14.4V rail across its motor controller and navigation board. This cell matches that voltage and the physical footprint — 90.06 x 69.53 x 45.45mm — so the pack seats correctly in the chassis bay without modification.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a robotic vacuum test rig. The BMS held cutoff correctly at low-cell voltage and did not trip under normal motor-start current.
• Dock charging discipline for Ni-MH cells: Do not leave the Robot Autonome sitting on its charging dock continuously. Ni-MH chemistry on a permanent trickle charge develops capacity fade faster than cells charged only when depleted. Charge to full, then lift the unit off the dock.

Suction dropping before the battery indicator reaches low

Ni-MH cells deliver voltage that sags under sustained motor load before the cell is actually depleted. On the Robot Autonome, this shows as noticeably weaker suction while the indicator still reads mid-charge. A partially blocked filter makes this worse — restricted airflow forces the motor to draw more current than rated, pulling cell voltage down faster. Clean the filter first, then test. If sag continues on a new filter, the cell itself is the cause and replacement is the fix.

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

This is a BMS overcurrent trip, not a wiring fault. When suction is restricted — blocked brush roll, full dust bin, or clogged filter — the motor draws sustained high current trying to maintain airflow. The BMS reads this as an overcurrent event and disconnects the cell to protect it. After a brief pause, voltage recovers and the unit restarts. Clear the blockage, empty the bin, and clean the filter before the next cycle. If the trip keeps happening on an unblocked unit, check that cell voltage under load stays above 12V.