Invictus X7 25.2V Replacement Battery 2000mAh 101904370

Invictus X7 / X9 Series — 25.2V Li-ion Replacement Battery (101904370)

This is a 25.2V, 2000mAh Li-ion battery for the Invictus X7, X7-01, X9, and X9-01 cordless stick vacuums. It replaces OEM part number 101904370 directly. If your vacuum's runtime has dropped off or the battery no longer holds a charge, this is the correct replacement cell.

• X7 and X9 platform fit: The X7 and X9 share the same 25.2V battery architecture and connector pinout. Both models run the same BMS handshake protocol, so one battery covers all four variants — X7, X7-01, X9, and X9-01.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a 25.2V platform and confirmed BMS communication, cutoff at low-voltage threshold, and correct charge acceptance from the OEM dock.
• Dock charging habit for this vacuum: Do not leave the X7 or X9 sitting on the charging dock permanently. Continuous dock contact keeps the BMS in a trickle-charge loop that accelerates cell capacity fade. Charge to full and disconnect.

Suction dropping before the battery indicator shows low

This is a voltage sag issue, not a capacity issue. When the filter is partially blocked, the motor draws more current than rated to maintain airflow. That extra draw pulls cell voltage down under load faster than the indicator updates, so the vacuum feels weak while the display still shows adequate charge. Clean or replace the filter first — if suction recovers, the battery is not the cause. If the motor still bogs on a clean filter with a new battery, measure pack voltage under load; it should hold above 22V during operation.

Motor cuts out mid-clean then restarts after a few seconds

This is a BMS overcurrent trip, not a faulty battery. It happens when sustained restricted airflow — usually a clogged filter or blockage in the floor head — forces the motor to pull current above the BMS protection threshold. The BMS cuts power to protect the cells, then resets after a brief cooldown. Clear the blockage and inspect the filter before assuming the battery is defective. If trips continue on an unobstructed vacuum, check that pack voltage is at or above 25.2V after a full charge cycle.