DeLonghi XLR25 Colombina Replacement Battery 25.9V 2500mAh

DeLonghi Colombina XLR25LE.GY — 25.9V Li-ion Replacement Battery (XLR25 / 5519210741)

This is a 25.9V, 2500mAh Li-ion replacement battery for the DeLonghi Colombina cordless vacuum range, including the XLR25LE.GY and XLR25LM models. It replaces OEM part numbers XLR25 and 5519210741. Install it when the original cell no longer holds charge or the vacuum shuts down prematurely mid-clean.

• Colombina XLR25 series compatibility: These models share the same 25.9V battery rail, connector pinout, and BMS handshake protocol. A single cell pack covers the full XLR25LE and XLR25LM variants without modification.
• Bench tested on actual hardware: We cycled this cell on the Colombina platform under both hard-floor and carpet-mode draw. The BMS responded correctly to sustained high-current pulls and returned accurate charge-state data to the indicator on the handle.
• Dock charging habit for this vacuum: Do not leave the Colombina sitting on its charging dock continuously between uses. This model's charger does not drop to a true maintenance rate — prolonged dock time applies trickle stress to the cells. Charge to full, then remove from the dock.

Suction dropping before the battery indicator reaches low

The XLR25 motor draws significantly more current when the filter is partially blocked — airflow restriction forces the motor to work harder, pulling the cell voltage down faster than the indicator predicts. The BMS reads this voltage sag as a low-battery event and begins throttling motor power, which the user notices as a suction drop. The indicator still shows charge because the pack voltage recovers the moment current demand drops. Clean or replace the filter first before assuming the battery is at fault.

Motor cutting out mid-clean then recovering on its own

This is a BMS overcurrent trip, not a dead battery. When suction is restricted — blocked nozzle, saturated filter, or heavy carpet engagement — current draw spikes past the BMS protection threshold and the pack disconnects. The vacuum goes silent, the user waits a few seconds, and it restarts because the BMS resets once current demand is gone. Clear the blockage, check the filter, and confirm pack voltage sits above 22V at rest with a multimeter before ruling out a cell fault.