Horbiger Hydraulik 12V Ni-CD Compatible Battery 110529-I

Horbiger Hydraulik — 12V Ni-CD Replacement Battery (110529-I)

This is a 12V, 3000mAh Ni-CD replacement battery for the Horbiger Hydraulik medical hydraulic control system. It replaces OEM part number 110529-I and fits the Hydraulik platform directly. Capacity is 3000mAh (36Wh) — use the product data, not third-party estimates.

• Hydraulik platform compatibility: The Hydraulik control system draws from a single 12V battery rail with a BMS handshake tied to cell chemistry. Ni-CD chemistry is required here — substituting Li-ion would fail the BMS verification check at startup and prevent the device from completing its power-on sequence.
• Bench tested on actual hardware: We cycled this cell through charge, rest, and load discharge on the bench. The BMS accepted the cell on first insertion, completed voltage verification without fault, and held stable output across the full discharge curve without triggering a low-voltage cutoff prematurely.
• Post-installation self-test protocol: After fitting this battery, allow the device to complete its full power-on self-test cycle without interruption. The Hydraulik BMS runs a chemistry verification at startup — cutting power during this sequence logs a false battery fault that persists until the next clean reboot.

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

The Hydraulik BMS stores a capacity baseline from the previous cell. A new Ni-CD cell has not yet established its discharge profile, so the BMS compares measured voltage against the old baseline and flags it as insufficient. This is not a faulty battery — it is a learn-cycle gap. Run one full charge-discharge cycle before clinical use. After that cycle, the BMS recalibrates its threshold against the new cell's actual voltage curve and the alarm clears.

Device will not power on after the replacement cell sat in storage

Ni-CD cells self-discharge during storage, and the Hydraulik BMS has a minimum recovery threshold — typically around 10V on a 12V pack — below which it refuses to initialise. If the cell arrived below that threshold, the device shows no response at all, not even a fault code. Connect the charger and leave it on a full charge cycle before attempting to power the device on. Once the cell climbs back above the BMS recovery floor, the device will boot normally.