Tesvor S6 Turbo Replacement Battery 14.4V 5200mAh

Tesvor S6 Turbo — 14.4V Li-ion Replacement Battery

This is a 14.4V, 5200mAh (74.88Wh) lithium-ion battery for the Tesvor S6 Turbo robotic vacuum cleaner. It fits directly into the S6 Turbo battery bay and restores cleaning power when the original cell has degraded. No OEM part number is published for this model — fitment is confirmed by voltage, form factor, and connector match.

• S6 Turbo platform fit: The S6 Turbo runs a 14.4V motor rail with a specific connector and BMS handshake. This cell matches that voltage rail, physical footprint (136.60 × 37.60 × 37.30 mm), and the BMS communication protocol the vacuum expects at power-on. Without that handshake, the vacuum will not draw from the cell.
• Bench tested on actual hardware: We cycled this cell through full charge and discharge passes on the S6 Turbo platform. The BMS responded correctly at startup, held voltage above the motor cutoff threshold through sustained suction loads, and triggered the low-cell protection at the expected floor voltage without a false cutoff mid-cycle.
• Dock charging habit for the S6 Turbo: The S6 Turbo auto-docks after each run. If left on the dock indefinitely, the charger applies a continuous trickle that accelerates capacity fade in lithium-ion cells. Charge to full, then physically remove the vacuum from the dock until the next scheduled run.

Suction dropping before the battery indicator reaches low

This is voltage sag under motor load, not a drained cell. When the filter is partially blocked or the brush roll is restricted, the motor draws above its rated current. The cell voltage dips under that spike, and the vacuum's motor controller reads it as a low-battery condition and reduces power. The indicator reflects state-of-charge under no load — it won't show the sag happening under a live draw. Clean the filter and check the brush roll before assuming the battery is at fault.

Motor cuts out mid-cycle and recovers after a short pause

That cut-and-recover pattern is a BMS overcurrent trip. It happens when sustained suction restriction — clogged filter, tangled brush roll, or a blocked intake — forces the motor to pull more current than the battery's protection circuit allows. The BMS trips, the motor stops, and after a few seconds the BMS resets and allows current again. This is not a battery fault. Clear the restriction, confirm filter airflow is unobstructed, and the cutout will stop. If it continues on a clean filter, measure pack voltage at rest — it should read 16.4V fully charged.