Redmond RV-R630S Replacement Battery 14.4V 3400mAh

Redmond RV-R630S Series — 14.4V Li-ion Replacement Battery (REB-R650S)

This is a 14.4V 3400mAh Li-ion replacement battery for the Redmond robotic vacuum range. It fits the RV-R630S, RV-R640S, and RV-R650S models. Capacity and voltage match the OEM specification using the REB-R650S part number.

• RV-R630S, RV-R640S, and RV-R650S compatibility: These three models run the same 14.4V motor platform, share the REB-R650S battery connector pinout, and use the same BMS handshake protocol. One cell fits all three without modification.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the RV-R650S platform. The BMS accepted the cell without error flags, voltage held steady under motor-start load, and the navigation system initialised normally from a cold start.
• Dock charging habit for this vacuum: Do not leave the RV-R630S sitting on the charging dock permanently between uses. Continuous trickle charging on Li-ion cells in robotic vacuums accelerates capacity fade. Charge to full, then remove the unit from the dock until the next cleaning cycle.

Suction dropping before the battery indicator shows low

This happens when a partially blocked filter forces the motor to draw current above its rated load. The BMS reads the spike as an overcurrent event and reduces power to the motor before the battery is actually depleted. The battery indicator reflects state of charge, not motor stress — so it can still show two bars while suction is already weak. Clean or replace the filter first, then test again; if suction recovers immediately, the cell is fine.

Motor cuts out mid-cycle and then restarts on its own

This is a BMS overcurrent trip, not a dead battery. When the vacuum transitions from hard floor to thick carpet, suction restriction spikes motor current sharply. If the filter is even partially clogged, that spike crosses the BMS overcurrent threshold and the pack shuts output until current drops. The BMS resets automatically once load falls, which is why the motor restarts after a few seconds. Clear the filter, check the brush roll for hair wrap, and confirm resting pack voltage is above 14.0V before ruling out the cell itself.