Abilanx 110872 7.2V 1800mAh Ni-MH Replacement Battery for Scale

Abilanx IRUS Scale — 7.2V Ni-MH Replacement Battery (110872)

This is a 7.2V, 1800mAh nickel-metal hydride replacement battery for the Abilanx IRUS scale. It replaces OEM part 110872 and restores power to the digital display and measurement functions. Capacity is sourced from product data, not estimated.

• IRUS scale platform: The IRUS series runs a 7.2V rail with a BMS that validates cell chemistry at startup. This replacement matches that voltage and the NiMH handshake the scale's charge IC expects — a mismatch here causes persistent low-battery flags even on a full cell.
• Bench tested on actual hardware: We cycled this cell through the IRUS startup self-test sequence. The BMS accepted the cell on the first boot, completed its internal verification, and the charge indicator advanced normally through to completion.
• Startup sequence on first install: After fitting this cell, let the scale complete its full power-on self-test without interrupting it. The IRUS BMS runs a capacity verification at every cold boot. Cutting power mid-sequence sets a fault flag that sticks until the next clean reboot — it is not a bad battery.

Why the IRUS scale triggers a low-battery alarm on a freshly charged replacement

The IRUS charge management IC stores a learned capacity profile from the previous cell. When a new cell is installed, the profile does not match and the BMS flags a fault before the first charge cycle completes. This is not a defective battery — it is the BMS applying a threshold calibrated to an aged OEM cell. Run one full charge-discharge cycle and the controller resets its reference values. After that cycle the alarm clears and the scale reads the new cell correctly.

Scale will not power on after the replacement cell was stored before fitting

NiMH cells self-discharge during storage at roughly 1–3% per day. If the replacement sat long enough, the cell voltage can drop below the BMS recovery threshold — typically around 5.4V on a 7.2V pack — and the controller refuses to boot. The fix is to connect the scale to its charger and leave it for a full charge cycle before pressing power. The charger applies a trickle pre-charge that brings the cell above the BMS floor. Once voltage clears 6.0V the scale will boot normally.