About this replacement
Shark WV200UK Series — 10.8V Li-ion Replacement Battery (XFBT200)
This is a 10.8V, 2500mAh Li-ion replacement battery for the Shark WV200UK cordless handheld vacuum. It also fits the WV200, WV201, and WV205 models. Direct swap for the original XFBT200 cell when the factory battery no longer holds charge.
- WV200 series compatibility: The WV200, WV201, WV205, and WV200UK all run the same 10.8V power rail and use an identical connector and BMS handshake. One cell covers the full range.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a WV200 unit. The BMS communicated correctly with the charger, accepted a full charge without fault codes, and the motor drew current within spec under load.
- Dock charging habit on the WV200: Do not leave the vacuum sitting on the charging dock permanently. Continuous trickle charge accelerates capacity fade on this cell faster than normal cycling. Charge to full, then remove from the dock.
Suction dropping before the battery indicator reaches low
This happens when the motor is working harder than rated — usually because airflow is restricted. A partially blocked filter forces the motor to draw excess current, which causes the BMS to reduce output voltage to protect the cell. The result is a noticeable suction drop even when the indicator still shows charge remaining. Remove and tap out the filter, or rinse it if the model allows, before assuming the battery is the cause.
Motor cutting out mid-clean then recovering after a few seconds
This is a BMS overcurrent trip, not a flat battery. When suction is blocked — by a full dust cup, a clogged filter, or a lodged debris piece — the motor load spikes and the BMS cuts power to protect the cell. It resets automatically once current drops back within limits. Empty the dust cup, check the filter, and clear any blockage at the inlet. If the cutout persists with a clear airway, check cell voltage under load — it should hold above 9.5V during operation.