Roidmi Eve Plus 14.4V Replacement Battery 6700mAh

Roidmi Eve Plus / SDJ01RM — 14.4V Li-ion Replacement Battery (H18650CH-4S2P)

This is a 14.4V Li-ion replacement battery for the Roidmi Eve Plus and SDJ01RM cordless stick vacuum. It carries 6700mAh (96.48Wh) of capacity, matching the original pack's voltage rail and connector. Fit this when the original cell no longer holds a full charge or the vacuum shuts off mid-clean.

• Eve Plus and SDJ01RM compatibility: Both models run the same 14.4V motor platform and use the same 4S2P cell arrangement with identical BMS communication. One battery covers both SKUs without any adaptor or wiring change.
• Bench tested on actual hardware: We ran this pack through full charge and load cycles on the Eve Plus motor assembly. The BMS handled draw spikes during suction transitions correctly and held cutoff thresholds within spec throughout testing.
• Dock charging habit on the Eve Plus: Do not leave the vacuum sitting on the charging dock permanently. Continuous trickle charge from the dock degrades Li-ion cell capacity faster than normal cycle use. Charge to full, then remove the vacuum from the dock until the next clean.

Suction dropping before the battery indicator reaches low

This happens when the motor draws more current than the battery's BMS expects at that state of charge, triggering a partial voltage sag rather than a hard cutoff. A clogged filter is the most common trigger — restricted airflow forces the motor to work harder, pulling excess current even on a charged pack. The BMS reads the voltage dip as a low-battery condition and reduces output to protect the cells. Clean or replace the filter first, then retest; a healthy battery should hold consistent suction until the indicator hits the final bar.

Motor cutting out mid-clean and then recovering after a few seconds

This is a BMS overcurrent trip, not a dead battery. When suction is sustained against a blockage or a heavily loaded carpet, current draw spikes past the BMS cutoff threshold and the pack disconnects the output circuit. Removing the load lets the BMS reset, which is why the vacuum restarts after a brief pause. Check the filter and the dust cup for blockages first — clear them, then verify the battery resting voltage sits above 15.8V on a multimeter before writing off the pack.