Xiaomi Roidmi Eve Plus 14.4V Replacement Battery SUN-INTE-181

Xiaomi Roidmi Eve Plus / Viomi Series — 14.4V Li-ion Replacement Battery (SUN-INTE-181)

This is a 14.4V 6700mAh Li-ion replacement battery for the Xiaomi Roidmi Eve Plus cordless stick vacuum and compatible Viomi models including the A1, ALPHA UV, and D800. It uses OEM part number SUN-INTE-181 and fits the original battery slot directly. Voltage, connector, and BMS communication all match the stock specification.

• Roidmi Eve Plus and Viomi A1 / ALPHA UV / D800 compatibility: These models share the same 14.4V battery rail, connector pinout, and BMS handshake protocol. One battery cell serves the whole group without adaptation.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the Eve Plus platform. The BMS responded correctly to motor-start draw spikes and did not trip on normal suction loads across hard floor and carpet modes.
• Dock charging habit on the Eve Plus: Do not leave the vacuum sitting on its charging dock continuously. The Eve Plus dock does not cut power once the cell reaches full charge, and sustained trickle current degrades Li-ion capacity faster than normal use. Charge to full, then remove it from the dock.

Cordless vacuum losing suction before the battery indicator reaches low

This happens when motor draw exceeds what the cell can deliver at its current state of charge, causing a voltage sag that throttles suction before the indicator registers a low reading. A partially blocked filter forces the motor to pull harder than rated current, which compounds the sag. The BMS reads the voltage drop as a load problem, not a capacity problem, so the indicator stays green. Clean the filter first — if suction recovers immediately, the cell is fine and the filter was the cause.

Motor cuts out mid-clean then recovers after a few seconds

This is a BMS overcurrent trip, not a failed battery. When suction is restricted — blocked brush roll, clogged filter, or sealed nozzle — the motor draws current above the BMS protection threshold and the cell disconnects to protect the pack. After a few seconds the BMS resets and power returns. Clear the blockage, check the filter, and restart. If the cutout stops happening, the cell is working as intended. If it persists on a clean, unblocked vacuum, measure pack voltage under load — it should hold above 12.5V during normal operation.