MyGenie XR210 Replacement Battery 14.4V 3500mAh Ni-MH

MyGenie XR210 / XR210 Nestor — 14.4V Ni-MH Replacement Battery

This is a 14.4V, 3500mAh Ni-MH replacement battery for the MyGenie XR210 and XR210 Nestor cordless stick vacuums. It fits the handheld motor assembly directly and restores full suction power to units where the original cell has degraded. Capacity is 3500mAh (50.4Wh) — matched to the original specification.

• XR210 and XR210 Nestor fit: Both models share the same 14.4V motor rail, battery bay dimensions, and connector orientation. The cell slots in without modification and communicates with the existing power circuit as the original does.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the XR210 platform. The BMS held stable across repeated motor-start draws, and voltage delivery stayed consistent through the full discharge curve without mid-cycle cutoff.
• Dock charging habit on the XR210: Do not leave the vacuum sitting on the charging dock continuously. Ni-MH cells in cordless vacuums develop capacity fade faster under permanent trickle charge than cells charged only when depleted. Charge to full, then remove from the dock.

Suction dropping before the battery indicator reaches low

This is a voltage sag issue, not a capacity issue. When the filter is partially blocked or the brush roll has trapped debris, the motor draws above its rated current. Ni-MH cells respond to sustained high draw with a voltage dip that the motor controller reads as a depleted battery — even when the cell still holds charge. Clean the filter and clear the brush roll first. If suction recovers immediately, the cell is fine and the restriction was the cause.

Motor cuts out mid-clean, then restarts after a short pause

This is a BMS overcurrent trip. Sustained restricted airflow — usually a clogged filter — forces the motor to pull more current than the protection circuit allows. The BMS cuts the circuit to prevent cell damage, then resets after the cell temperature drops slightly. This cycle will repeat until the restriction is cleared. Wash or replace the filter, then confirm the resting cell voltage is at or above 14.4V before the next run.