ETA 1515 Falco Replacement Battery 14.8V 2200mAh Li-ion

ETA 1515 Falco / 2515 FalcoSmart Series — 14.8V Li-ion 2200mAh Replacement Battery

This is a 14.8V 2200mAh Li-ion battery pack for the ETA 1515 Falco and related cordless vacuum models including the 2515 FalcoSmart, 2512 Aron, and 1515 90000 Falco. It replaces the original factory pack when capacity has degraded and the vacuum can no longer complete a full cleaning session on a single charge. Dimensions are 70.19 × 37.17 × 36.96mm — confirm your bay dimensions before ordering.

• 1515 Falco family compatibility: These models share a common 14.8V four-cell Li-ion architecture, the same physical bay format, and a matched BMS communication profile. Swapping between them does not require any firmware change or adapter.
• Bench tested on actual hardware: We ran this pack through charge and discharge cycles on the 1515 Falco platform. The BMS negotiated correctly with the charger, held steady voltage through sustained suction load, and tripped overcurrent protection cleanly when we simulated a blocked filter draw.
• Dock charging habit for Falco vacuums: Do not leave the vacuum sitting on the charging dock permanently between uses. Cordless vacuums on continuous dock charge accumulate trickle charge stress and lose capacity faster than units charged only when the pack is depleted. Charge to full, then remove from the dock.

Suction dropping before the battery indicator reaches low on the Falco

The Falco's motor draws significantly more current when the filter is restricted or partially blocked. As the battery ages and internal resistance rises, this elevated draw causes cell voltage to sag earlier than the indicator predicts. The indicator reads state-of-charge under light load, not under motor load, so the display looks fine while suction is already falling. A fresh pack with lower internal resistance restores the voltage headroom the motor needs to maintain consistent airflow.

Motor cuts out mid-clean then recovers after a few seconds

This is a BMS overcurrent trip, not a motor fault. When suction is restricted — blocked filter, clogged brush head, or tight carpet pile — the motor pulls sustained high current and the BMS shuts the output rail to protect the cells. After a few seconds the BMS resets and the vacuum runs again, until the restriction repeats the cycle. Clear the filter and brush head first. If the cutout persists on a clean filter with a new battery, verify the pack is sitting fully seated in the bay and the contacts are clean before assuming a motor issue.