About this replacement
Dyson DC-16 / DC16 Animal / Root 6 — 22.2V Li-ion Replacement Battery (BP-01)
This is a 22.2V, 2000mAh (44.4Wh) Li-ion battery for the Dyson DC-16 series handheld cordless vacuum. It fits the DC-16, DC16 Animal, DC16 Root 6, and D12 Cordless Vacuum among others. It replaces OEM part numbers BP-01, 12097, 912433-01, 912433-03, and 912433-04.
- DC-16 series compatibility: All DC-16 variants — including Animal and Root 6 — share the same 22.2V battery platform, connector pinout, and BMS handshake protocol. One battery covers the full lineup.
- Bench tested on actual hardware: We ran this battery through motor-start and sustained suction cycles on the DC-16. The BMS held steady across the full discharge curve with no false overcurrent trips under normal load.
- Dock charging habit on DC-16: Do not leave the DC-16 sitting on the charger indefinitely after it reaches full charge. Continuous trickle charging accelerates capacity fade on Li-ion cells at this voltage. Charge to full, then remove from the dock.
Suction dropping before the battery indicator reaches low
The DC-16 motor draws more current the moment airflow is restricted — a clogged filter or partial blockage forces higher amp draw than the cells are rated to sustain. The BMS responds by throttling output voltage before the gauge registers low, which the user reads as a dying battery. Clean the filter first. If suction recovers after a filter clean, the battery was never the problem. If suction still drops with a clean filter and a fully charged cell, check resting voltage — a healthy pack should read at least 24.0V off charge.
Motor cuts out mid-clean and then recovers after a few seconds
This is an overcurrent trip, not a dead battery. The DC-16 BMS cuts power when sustained current exceeds the pack's protection threshold — most commonly triggered by a blocked nozzle or filter running the motor under strain. The BMS resets automatically after a short thermal pause, which is why the vacuum comes back on its own. Clear any blockage, check the filter is seated correctly, and confirm the pack voltage is above 21.0V before ruling out a worn cell.