Tefal RG7675 Replacement Battery 14.4V 2600mAh Li-ion

Tefal RG7675 / RG8575 Series — 14.4V Li-ion Replacement Battery

This 14.4V 2600mAh Li-ion battery replaces the original pack in the Tefal RG7675, RG7687, RG8575, RG8577, and over 33 compatible cordless stick vacuum models. It restores full suction to vacuums where the original cell has lost capacity after repeated charge cycles. Voltage and connector match the OEM specification.

• RG7675 / RG8575 platform compatibility: These models share the same 14.4V cell format, connector pinout, and BMS handshake protocol. Swapping between them requires no modification — the battery communicates state-of-charge to the motor controller the same way the original does.
• Bench tested on actual hardware: We ran this cell through full charge-discharge cycles on the RG7675 platform. The BMS held voltage within spec under sustained motor load and tripped correctly on simulated blockage — no false cutoffs at normal operating draw.
• Dock charging habit for this vacuum: Do not leave the RG7675 sitting on the charging dock continuously between uses. Tefal stick vacuums on permanent dock charge develop capacity fade faster than those charged only when depleted. Charge to full, then remove from the dock.

Suction dropping before the battery indicator reaches low

On the RG7675, suction loss often happens when the motor draws more current than the BMS expects — not because the cell is empty, but because a partially blocked filter forces the motor to work harder. The BMS reads elevated current draw and reduces power delivery to protect the cell. Clean or replace the filter first; if suction normalises, the battery is not the cause. If suction still fades after a clean filter, the cell may have lost enough capacity that voltage sags under load — test resting voltage after a full charge, which should read 16.6V to 16.8V across the terminals.

Motor cuts out mid-clean then recovers after a short pause

This is a BMS overcurrent trip, not a dead battery. When suction airflow is restricted — blocked filter, clogged brush roll, or sealed inlet — the motor stalls briefly, current spikes, and the BMS cuts output to prevent cell damage. After a few seconds the BMS resets and power returns. The fix is mechanical: clear the blockage, check the filter, and confirm the brush roll spins freely. If cutouts continue on an unblocked vacuum, measure cell voltage under load — a drop below 12V during motor start indicates a degraded cell that needs replacement.