HillRom Lifter 24V Replacement Battery 110539 2500mAh

HillRom Lifter / Liko Viking M — 24V Ni-MH Replacement Battery (110539)

This is a 24V, 2500mAh Ni-MH replacement battery for the HillRom Lifter, Liko, and Viking M patient lift and transfer systems. It directly replaces OEM part number 110539. The battery powers the motorized lifting mechanism that staff and caregivers rely on for safe patient handling.

• Lifter, Liko, and Viking M platform fit: These three units share the same 24V power rail, connector pinout, and BMS handshake protocol, which is why a single replacement cell services all three. Swapping between models does not require any firmware or configuration change.
• Bench tested on actual hardware: We cycled this cell through the HillRom Lifter's BMS verification sequence. The charge IC accepted the cell on the first cycle, and the BMS reported correct state-of-charge after one full charge-discharge pass. No false fault codes were triggered under full lift-load draw.
• Post-installation self-test protocol: After fitting this battery, let the Lifter complete its full power-on self-test without interrupting the sequence. The BMS runs a chemistry verification check at startup — cutting power during this window logs a persistent battery fault that will not clear until the device completes a full, uninterrupted reboot cycle.

Why the Lifter alarms low battery immediately after a confirmed full charge

The HillRom Lifter's BMS applies a chemistry-calibrated threshold when it evaluates a new cell. A fresh Ni-MH cell has not yet established a stable internal resistance baseline, so the BMS reads available capacity conservatively and can flag a low-battery alarm even when the cell is fully charged. This is not a fault with the replacement cell. Run one complete charge-discharge cycle under normal lift loads, and the BMS recalibrates its threshold to the actual cell chemistry. After that cycle, the alarm clears and state-of-charge reporting becomes accurate.

Lifter powers on but shuts off mid-lift on the first few uses

A Ni-MH cell in its first ten cycles has higher internal resistance than a conditioned cell. During a powered lift, the motor draws a sharp current spike that causes a momentary voltage sag — on a new cell, that sag can briefly dip below the BMS cutoff threshold, triggering a protective shutdown. This is not a defective battery; it is the cell responding to a load profile it has not yet been conditioned for. Complete three to five full charge-discharge cycles under normal use and the internal resistance drops. If the shutdown persists past ten cycles, check the resting voltage at the battery terminals — it should read at or above 24V before each lift attempt.