Blaupunkt XSMART 14.4V Cordless Vacuum Replacement Battery

Blaupunkt XSMART / XEASY Series — 14.4V Li-ion Replacement Battery (6.60.40.04-0)

This is a 14.4V, 3000mAh (43.2Wh) Li-ion battery for the Blaupunkt XSMART and XEASY cordless stick vacuums. It also fits the BPK-VCBB1XS and BPK-VCBB1XE models. OEM part numbers covered: 6.60.40.04-0 and 6.60.40.05-0.

• XSMART and XEASY platform fit: Both the XSMART and XEASY share the same 14.4V battery rail, connector format, and BMS handshake protocol. One battery covers the full range without modification.
• Bench tested on actual hardware: We cycled this battery through full charge and discharge on the XSMART platform. The BMS responded correctly to both the charger handshake and the motor draw, with no false overcurrent trips during sustained suction.
• Dock charging habit for this vacuum: Do not leave the XSMART on the charging dock permanently. Cordless stick vacuums on continuous dock charge develop capacity fade significantly faster than those charged only when depleted. Charge to full, then remove the battery or vacuum from the dock.

Suction dropping before the battery indicator shows low

On the XSMART, this usually comes down to voltage sag under load rather than actual capacity loss. When the filter is partially blocked, the motor draws more current to maintain suction, which pulls the cell voltage down faster than the indicator tracks. The BMS reads this as a normal load and does not flag it — so the indicator looks fine while suction is already falling. Clean or replace the filter first; if sag continues on a clean filter, the cells are likely degraded and this replacement battery will restore normal motor voltage under load.

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

This is a BMS overcurrent trip, not a dead battery. On the XSMART, sustained restricted airflow — from a blocked filter or a partial clog in the head — forces the motor to spike current beyond what the BMS allows. The BMS trips, the motor stops, and after 30–60 seconds the BMS resets and the vacuum runs again. Clearing the blockage and cleaning the filter removes the current spike that triggers the trip. If the motor cuts out on a clean, unblocked machine, verify the replacement battery's BMS is communicating correctly — reconnect the battery and confirm the charger reaches 16.8V at the terminals before first use.