XRobot XR510 Robotic Vacuum Replacement Battery 14.4V 2000mAh

XRobot XR510 — 14.4V Ni-MH Replacement Battery

This is a 14.4V, 2000mAh Ni-MH replacement battery for the XRobot XR510 robotic vacuum cleaner. It slots into the XR510's battery bay and powers the drive motors and suction system. Capacity is rated at 28.8Wh — matching the original cell specification.

• XR510 platform fit: The XR510 runs a 14.4V motor rail across both its drive wheels and suction motor. This cell matches that voltage requirement and the bay dimensions — 91.91 x 67.35 x 44.58mm — so the pack seats correctly and the contacts align without modification.
• Bench tested on actual hardware: We cycled this cell through repeated charge and discharge sequences on the XR510 platform. The BMS held stable across normal suction loads and responded correctly when the motor drew higher current over carpeted surfaces.
• Dock charging habit on the XR510: Do not leave the XR510 sitting on the charging dock indefinitely between uses. Continuous trickle charging accelerates capacity fade in Ni-MH cells faster than in lithium chemistries. Charge to full, then remove the unit from the dock until the next use cycle.

Suction dropping before the battery indicator reaches low

The XR510's suction motor pulls more current when filters are partially blocked — the motor works harder to maintain airflow and voltage across the 14.4V rail begins to sag. The battery indicator reads state-of-charge, not voltage under load, so it can still show mid-range while suction has already weakened. This is a voltage sag failure under sustained high draw, not a capacity problem. Clean the filter first — if suction recovers immediately, the battery was not the cause.

Motor cutting out mid-run and then recovering after a pause

This is a BMS overcurrent trip. When the XR510 encounters a blockage or heavily soiled filter, the motor current spikes past the BMS threshold and the pack cuts output to protect the cells. After a short pause, the BMS resets and the vacuum runs again. The fix is not a new battery — clear the blockage, clean the filter, and check the brush roll for tangled debris. If the trip still occurs on a clean machine with a new battery, verify the charger brought the pack to full voltage before the run.