Blaupunkt XBOOST 14.4V Cordless Vacuum Replacement Battery 2600mAh

Blaupunkt XBOOST / BPK-VCBB1XB Series — 14.4V Li-ion Replacement Battery (D071-INR-CH-4S1P)

This is a 14.4V 2600mAh Li-ion replacement battery for the Blaupunkt XBOOST cordless vacuum and related models including BPK-VCBB1XB, BPK-VCBB1XBN, and BlueBot XSMART. It carries OEM part numbers D071-INR-CH-4S1P and 6.60.40.02-0. Capacity is 37.44Wh — matched to the original specification.

• XBOOST and BPK-VCBB1XB platform fit: These models share a common 14.4V 4S1P cell configuration, the same physical connector, and the same BMS handshake profile. A single replacement cell works across the full range because the motor drive and suction control board expect identical voltage and communication signals from the pack.
• Bench tested on actual hardware: We ran this pack through a full charge and discharge cycle on an XBOOST unit. The BMS reported no fault codes, the protection circuit tripped correctly at low-voltage cutoff, and charge acceptance held steady across repeated cycles without thermal flags.
• Dock charging habit on this vacuum: Do not leave the XBOOST sitting on its charging dock permanently. Cordless vacuums on continuous dock charge develop capacity fade significantly faster than units charged only when depleted. Charge to full and remove from the dock.

Cordless vacuum losing suction before the battery indicator reaches low

This happens when the motor draws more current than the BMS allows under restricted airflow — typically a partially blocked filter or blocked brush head. The battery still has charge, but the pack's protection circuit reads an overcurrent condition and reduces output to the motor. The indicator shows adequate charge because cell voltage hasn't dropped, but motor torque falls off early. Clean the filter and check the brush head before assuming the battery is at fault.

Motor cuts out mid-use then recovers after a short pause

This is a BMS overcurrent trip, not a dead battery. When suction is sustained against a blockage or a heavily loaded carpet pass, current draw spikes above the pack's rated threshold and the BMS shuts off output to protect the cells. After a brief rest, the BMS resets and the vacuum powers back on. The fix is to clear any restriction at the nozzle or filter — the trip threshold on this 14.4V pack is designed to activate under sustained abnormal load, not normal vacuuming. If trips continue with no blockage present, check that the replacement battery's BMS is communicating correctly with the unit at the connector.