Moneual RYDIS R750 Replacement Battery 12.8V 1400mAh

Moneual RYDIS R750 — 12.8V LiFePO4 Replacement Battery (10J001026)

This is a 12.8V 1400mAh LiFePO4 replacement battery for the Moneual RYDIS R750 robotic vacuum cleaner. It fits the RYDIS R750, Rydis Cleanbot R750, ME590, and ME685. OEM part number 10J001026. Capacity is 17.92Wh as rated.

• RYDIS R750, Cleanbot R750, ME590, ME685 fitment: These models share the same 12.8V LiFePO4 cell configuration, physical dimensions (73.10 × 71.00 × 18.40mm), and BMS handshake protocol — one battery covers all four platforms without modification.
• Bench tested on actual hardware: We ran this battery through full charge and discharge cycles on the R750 platform. The BMS held voltage within spec across the drive motor, brush motor, and navigation sensor load simultaneously. No false low-battery cutoff was triggered under combined load.
• Dock charging habit for the R750: The R750 returns to its dock automatically after every clean. Leaving it docked continuously applies a trickle charge that accelerates LiFePO4 cell degradation over weeks. Charge to full, then remove the unit from the dock until the next scheduled run.

Suction dropping before the R750 battery indicator shows low

On the R750, suction loss often happens at normal battery charge levels and has nothing to do with remaining capacity. A partially blocked filter forces the brush and suction motors to draw more current than rated, which causes voltage to sag under load even from a healthy battery. The BMS interprets the sag as low charge and reduces power output. Clear the filter first — if suction restores, the battery was not the issue. If sag continues on a clean filter, the cell has lost capacity and voltage is dropping below 11.5V under load.

R750 motor cuts out mid-run then recovers after a pause

This is a BMS overcurrent trip, not a battery failure. When the R750 drives over a rug transition or encounters a tangle, the brush motor current spikes sharply. If the spike exceeds the BMS threshold — typically triggered by sustained restricted rotation, not a momentary spike — the BMS cuts power to protect the cells. The robot pauses, the BMS resets, and the unit resumes. If this happens repeatedly on clean flooring with no obstruction, check that the replacement battery's BMS trip threshold matches the original spec; an undersized cell will trip on normal carpet load.