Beko Arcelik SD-3061 Replacement Battery 25.2V 2000mAh

Beko Arcelik SD-3061 — 25.2V Li-ion Replacement Battery (BP25220G)

This is a 25.2V 2000mAh Li-ion replacement battery for the Beko Arcelik SD-3061 cordless stick vacuum. It replaces OEM part BP25220G and restores suction power when the original cell has degraded or failed. Capacity is 2000mAh (50.4Wh) — matched to the original specification.

• Arcelik SD-3061 fit: This battery uses the same 25.2V cell configuration and connector pinout as the original BP25220G. The BMS communicates with the vacuum's charge controller using the same handshake protocol, so the charge indicator and cutoff behaviour work as expected.
• Bench tested on actual hardware: We ran the battery through charge cycles on the SD-3061 platform. The BMS held steady voltage output under sustained motor load, and the overcurrent protection tripped correctly when the motor draw spiked — then reset without requiring manual intervention.
• Dock charging on this model: Do not leave the SD-3061 sitting on the charging dock continuously. Cordless 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 SD-3061

This is one of the most common complaints on stick vacuums and it is rarely the battery alone. When the filter is partially blocked, the motor works harder to maintain airflow and draws above its rated current. The BMS reads this as high load and reduces output voltage to protect the cells. Suction feels weak even though the battery charge indicator still shows mid-level. Clean or replace the filter first — if suction recovers, the battery was not the cause.

Motor cuts out mid-clean then comes back on its own

This is a BMS overcurrent trip, not a dead battery. When the vacuum is held at an angle that restricts airflow — or pushed hard into thick carpet — the motor current spikes sharply. The BMS cuts power within milliseconds to protect the cells, then resets once the current drops back to safe levels. To stop it recurring, check the filter for blockage and avoid sustained full-power passes over deep-pile carpet. If the cutout still happens on a cleared filter, measure resting voltage — a healthy cell at full charge should read at or above 25.2V.