About this replacement
Media Q3 / Q3 Lady — 22.2V Li-ion Replacement Battery (BP22220A)
This is a 22.2V 2000mAh lithium-ion replacement battery for the Media Q3 power, Q3 Lady, and Q3 cordless stick vacuums. It slots in using the same connector and BMS interface as the original BP22220A pack. Capacity is sourced from the product specification — 44.4Wh total energy.
- Q3, Q3 Lady, and Q3 power compatibility: All three models run the same 22.2V six-cell Li-ion architecture with a shared connector and BMS communication protocol. Swapping between variants requires no modification.
- Bench tested on actual hardware: We cycled this pack through repeated suction loads on the Q3 platform. The BMS handled motor-start inrush current without tripping and held voltage within spec across the discharge curve.
- Dock charging habit on the Q3: Do not leave the Q3 sitting on the charging dock permanently. Continuous trickle charge after full capacity degrades the cell chemistry faster than normal cycling. Charge to full, then remove the vacuum from the dock.
Suction dropping before the battery indicator reaches low
This happens when a partially blocked filter forces the motor to draw more current than its rated load. The extra draw causes the battery voltage to sag under load, even when the cells still hold a reasonable state of charge. The Q3's indicator reads cell voltage at rest, not under load — so the light stays green while suction performance falls. Clean or replace the filter first before concluding the battery is at fault.
Motor cuts out mid-clean and then recovers after a few seconds
This is a BMS overcurrent trip, not a dead battery. When suction is sustained against a blockage or a clogged filter, current draw spikes above the BMS threshold and the pack shuts the output rail. After a few seconds the BMS resets and power returns. Check the filter and inspect the floor head for a partial blockage. If the cutout repeats on a clean filter with an unobstructed head, measure the resting pack voltage — it should read between 24.0V and 25.2V on a full charge.