Concept VP4136 2in1 Replacement Battery 22.2V 2200mAh

Concept VP4136 2in1 — 22.2V Li-ion Replacement Battery (4239324)

This is a 22.2V 2200mAh Li-ion replacement battery for the Concept VP4136 2in1 cordless vacuum cleaner. It fits the 6-pin connector variant of this model and restores power to both the handheld and stick vacuum configurations. Capacity is 48.84Wh, matching the original specification.

• VP4136 2in1 6-pin fit: The 6-pin connector on this battery carries both power and BMS communication to the VP4136 motor controller. A 4-pin cell will seat physically but won't complete the handshake — the vacuum won't start. This battery uses the correct 6-pin arrangement the VP4136 expects.
• Bench tested on actual hardware: We ran this battery through full charge and discharge cycles on the VP4136 platform. The BMS negotiated correctly with the vacuum's motor controller, and overcurrent protection tripped as expected under a simulated blockage — then reset cleanly once load was removed.
• Dock charging on the VP4136: Do not leave the vacuum on the charging dock continuously. The VP4136 dock delivers a trickle charge when the battery is full, and sustained trickle charging accelerates capacity fade in Li-ion cells. Charge to full, then remove from the dock.

Suction dropping before the battery indicator reaches low

The VP4136 motor draws more current when the filter is partially blocked — restricted airflow forces the motor to work harder to maintain suction. As current draw rises, the battery voltage sags under load faster than the indicator reflects. The indicator reads cell voltage at rest, not under the sustained high draw of a dirty filter. Clean or replace the filter first; if suction recovers, the battery is not the fault — a blocked filter was pulling the cell down early.

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

This is the BMS overcurrent trip, not a dead battery. When suction is restricted — blocked filter, stuck debris at the nozzle — current spikes past the BMS threshold and the cell disconnects to protect itself. The pause allows the BMS to reset and the motor restarts. The fix is clearing the restriction, not replacing the battery. If the cut-out continues after the filter is clean and the nozzle is clear, check that the battery contacts are fully seated and the voltage at the 6-pin connector reads at least 20V under no load.