About this replacement
Eureka Groove Robot Vacuum — 14.4V Li-ion Replacement Battery (P14426D)
This is a 14.4V 2600mAh Li-ion replacement battery for the Eureka Groove Robot Vacuum. It slots into the same bay as the original cell and uses the same BMS interface the Groove's charging dock expects. Capacity is sourced from the product specification — 2600mAh at 37.44Wh.
- Groove Robot Vacuum platform fit: The Groove uses a fixed 14.4V cell bay with a specific connector pinout and BMS handshake that the charging dock verifies before initiating charge. This replacement matches that voltage rail and connector exactly, so the dock recognises the cell and charges normally.
- Bench tested on actual hardware: We ran this cell through charge cycles on a Groove unit and confirmed the BMS communicated correctly with the dock. Charge acceptance was normal, and the cell reached full charge without error flags on the dock indicator.
- Dock charging habit for the Groove: Do not leave the Groove sitting on the dock between every clean. Continuous trickle charging from the dock degrades cell capacity faster than storing the vacuum off-dock once full. Charge to 100%, remove from dock, and return it only when the battery is depleted.
Suction dropping before the battery indicator reaches low on the Groove
The Groove's motor draws a sustained current to maintain suction across both carpet and hard floor. When the cell ages and internal resistance rises, voltage sags under that load even though the cell isn't technically empty. The BMS reads the sag as a low-voltage condition and reduces power to protect the cell — suction drops, but the indicator hasn't triggered yet. A fresh cell with lower internal resistance holds the voltage rail steady under motor load, which restores full suction throughout the clean.
Motor cuts out mid-cycle then restarts on its own
This is a BMS overcurrent trip, not a flat battery. It usually happens when the filter is partially blocked — restricted airflow forces the motor to spin harder, drawing more current than the BMS allows. The BMS cuts output to prevent cell damage, the vacuum stops, and once current drops back to safe levels the BMS resets and the motor restarts. Before replacing the battery, remove and clean the filter. If cutouts continue with a clean filter, the cell's overcurrent threshold has degraded and replacement is the correct fix.