Xiaomi Viomi V3 14.4V Stick Vacuum Compatible Battery 5465V202

Xiaomi Viomi V3 — 14.4V Li-ion Replacement Battery (5465V202)

This is a 14.4V, 4500mAh (64.8Wh) Li-ion battery pack for the Xiaomi Viomi V3 cordless stick vacuum. It replaces OEM part 5465V202 and fits directly into the Viomi V3 battery housing. Capacity figure is taken from the product specification — not estimated from third-party sources.

• Viomi V3 platform fit: The V3 uses a 14.4V cell stack with a BMS that monitors draw during motor ramp-up. This replacement carries the same voltage rail and connector pinout, so the vacuum's power management circuit recognises the pack and allows full motor output.
• Bench tested on actual hardware: We ran this pack through motor start cycles and sustained suction loads. The BMS held its overcurrent threshold correctly and did not trip under normal operating draw. Cell balance across the stack stayed within acceptable deviation after repeated discharge cycles.
• Dock charging behaviour on the Viomi V3: Do not leave the vacuum seated on the charging dock continuously. The Viomi V3 dock does not cut trickle current reliably once the pack is full. Remove the vacuum from the dock when charging is complete to avoid accelerated capacity fade.

Suction dropping before the battery indicator reaches low

On the Viomi V3, suction loss mid-session usually happens before the battery LED signals a low charge. The cause is voltage sag under motor load — when the filter is partially blocked, the motor draws more current than rated, which pulls cell voltage below the motor controller's threshold. The BMS does not trip, but the controller reduces power to protect the motor. Clear the filter and check the brush roll for hair wrap before suspecting the battery pack.

Motor cuts out and then recovers a few seconds later

This is a BMS overcurrent trip, not a depleted battery. Sustained restricted airflow — from a clogged filter or blocked nozzle — forces the motor to pull a sustained high current. The BMS interprets this as a fault and cuts output. It resets automatically after a few seconds once current demand drops. Fix the blockage first; if the trip keeps happening on a clear filter, check that the charger brought the pack to a full 16.8V before use.