About this replacement
LEXY R510-3 / R330S / R510-1 — 14.4V Ni-MH Replacement Battery (HG230601)
This is a 14.4V 3000mAh Ni-MH replacement battery for the LEXY R510-3, R330S, and R510-1 cordless stick vacuums. It uses OEM part number HG230601 and fits the original battery compartment directly. Capacity is rated at 3000mAh (43.2Wh), matching the factory specification for these models.
- R510-3, R330S, and R510-1 compatibility: All three models share the same 14.4V battery rail, physical connector, and BMS communication profile — that is why a single cell covers the full range. The R330S uses the same motor driver board as the R510 series, so voltage tolerance and charge cutoff thresholds are identical across all three.
- Bench tested on actual hardware: We ran the HG230601 cell through full charge-discharge cycles on the R510-3 motor assembly. The BMS accepted the charge profile without error, held cutoff voltage correctly under sustained motor load, and did not trip on the inrush current at start-up.
- Dock charging on LEXY stick vacs: Do not leave the vacuum sitting on the charging dock between uses. Ni-MH cells in continuous trickle charge lose capacity faster than cells cycled normally. Charge to full, remove from the dock, and reconnect only when the battery is depleted.
Suction dropping before the battery indicator reaches low on the R510-3
Ni-MH cells show a voltage sag under sustained motor load before the indicator registers a low state. On the R510-3, this appears as reduced suction — especially on carpet — while the LED still shows adequate charge. A partially blocked filter makes this worse because the motor draws above its rated current to compensate, pulling the cell voltage down faster. Check and clean the filter first. If the sag continues on a clean filter, the existing cell has lost capacity and replacement is the correct fix.
Motor cuts out mid-clean then recovers after a few seconds
This is a BMS overcurrent trip, not a dead battery. When airflow is restricted — by a clogged filter or a blockage in the suction path — the motor draws sustained high current to maintain suction, and the BMS cuts power to protect the cell. The vacuum recovers once the BMS resets, typically within a few seconds. Clear the filter and check the suction path for blockages. If the cut-out stops after cleaning, the cell is fine; if it continues on a clear airway, the existing battery can no longer hold voltage under load and should be replaced.