ROBOTS JNB-XR210 Replacement Battery 14.4V 2000mAh Ni-MH

ROBOTS JNB-XR210 Series — 14.4V Ni-MH Replacement Battery

This is a 14.4V, 2000mAh Ni-MH replacement battery for the ROBOTS JNB-XR210, JNB-XR210B, and JNB-XR210C robotic vacuum cleaners. It powers the drive motors and suction motor when the original cell can no longer hold a usable charge. Capacity is rated at 28.8Wh.

• JNB-XR210 series fit: The XR210, XR210B, and XR210C all run the same 14.4V motor rail with the same battery bay dimensions and connector orientation. One cell services all three variants without modification.
• Bench tested on actual hardware: We cycled this cell through full charge and discharge on the JNB-XR210 platform. The BMS handled both drive and suction motor loads without tripping, and voltage held stable across hard-floor and carpet transitions.
• Dock charging habit: Do not leave the vacuum sitting on the charging dock permanently. Ni-MH cells on continuous trickle charge develop capacity fade faster than cells charged only when depleted. Charge to full, then remove from the dock.

Suction dropping before the battery indicator reaches low

A partially blocked filter forces the suction motor to draw more current than rated to maintain airflow. That extra draw causes voltage to sag at the cell earlier than the indicator expects. The vacuum feels like the battery is dying when the real issue is restriction upstream of the motor. Clean or replace the filter first — if suction recovers immediately, the battery was not the problem.

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

This is a BMS overcurrent trip, not a dead battery. When sustained suction restriction drives motor current above the BMS threshold, the circuit opens to protect the cell. The vacuum recovers after a short pause because the BMS resets once current demand drops. Clear the filter and brush roll of debris, then resume — if the cutout stops, the restriction was the trigger, not cell failure.