Shark CleanSense iQ+ Replacement Battery 14.8V 3000mAh

Shark CleanSense iQ+ / IW3241JSL — 14.8V Li-ion Replacement Battery (XPBTR430SLJ)

This is a 14.8V 3000mAh Li-ion replacement battery for the Shark CleanSense iQ+ cordless stick vacuum. It replaces OEM part XPBTR430SLJ and fits the IW3241JSL model. Swap it in when the original cell no longer holds a useful charge or when you need a second pack for back-to-back cleaning runs.

• CleanSense iQ+ and IW3241JSL compatibility: Both models share the same 14.8V battery bay, connector pinout, and BMS handshake protocol. A replacement cell must match the voltage rail exactly — running a lower-voltage pack causes the motor controller to underperform and can trigger a protection fault on startup.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the CleanSense iQ+ platform. The BMS communicated correctly with the vacuum's charge indicator, and the overcurrent protection tripped and reset cleanly during a simulated filter-blockage draw event.
• Dock charging habit for this vacuum: Leaving the CleanSense iQ+ sitting on its charging dock continuously accelerates capacity fade. The charger does not fully cut off once the cell is full. Charge to 100%, then lift the vacuum off the dock until the next cleaning session.

Suction dropping before the battery indicator reaches low

This happens when the motor is drawing more current than the rated load — usually because a partially blocked filter forces the motor to work harder. The battery voltage sags under that elevated draw, and the motor controller throttles output before the cell is genuinely depleted. The indicator reads mid-charge while suction feels noticeably weaker. Wash or replace the foam and felt filters, then retest — clean filters restore draw to within spec and the sag disappears.

Motor cuts out mid-run then recovers after a few seconds

This is a BMS overcurrent trip, not a faulty battery. When suction is restricted — blocked brush roll, clogged filter, or a sealed floor attachment — current spikes past the BMS threshold and it shuts the cell output down as a protection measure. A few seconds later the BMS resets and the motor starts again. Clear the blockage first. If the trip continues on an unobstructed vacuum with a new filter, check the brush roll for hair wrap restricting rotation, which creates the same sustained high-current condition.