Cattron Theimeg C8096 12V Crane Remote Compatible Battery

Cattron Theimeg Toggle Controller — 12V Ni-CD Replacement Battery (C8096)

This is a 12V, 900mAh Ni-CD replacement battery for the Cattron Theimeg Toggle Controller. It fits the Toggle Controller, 7700T15, and T01 models used in overhead crane and industrial hoist remote control systems. The C8096 part number confirms direct compatibility across these units.

• Toggle Controller, 7700T15, and T01 fitment: These three models share the same 12V battery bay, connector pinout, and C8096 part number. The BMS in each unit expects the same charge curve and termination voltage, so one cell works across all three without modification.
• Bench tested on actual hardware: We ran this battery through full charge cycles on the Toggle Controller platform and confirmed the BMS accepted the cell, terminated charge correctly at peak delta-V, and held stable voltage under relay activation loads without triggering a dropout.
• Ni-CD monthly top-up for infrequently used crane remotes: Crane remotes often sit idle between jobs for weeks. Ni-CD cells self-discharge at roughly 20% per month — leaving this battery uncharged through a long idle period can push cell voltage low enough that the remote won't power on when you need it. Put the remote on charge once a month during any idle stretch.

Solenoid activation causing power dropout on a freshly installed battery

When a crane remote triggers a solenoid or contactor relay, the inrush current spike can exceed what a partially charged or aged battery can supply without a voltage sag. If the sag is deep enough, the BMS interprets it as a fault and cuts output — the remote resets mid-operation. This is not a remote fault. A Ni-CD cell at storage voltage (around 1.2V per cell, 12V nominal across 10 cells) can't sustain the instantaneous current demand of relay activation. Charge the battery fully before first use and confirm the pack reads at least 13.8V on a multimeter before operating the crane.

Remote showing "low battery" immediately after a new cell is fitted

A new Ni-CD cell ships at storage voltage — typically 60–70% of rated capacity — not full charge. The Toggle Controller's low-battery indicator trips on actual measured voltage, so a fresh cell at storage voltage will trigger the warning straight away. This is expected behaviour, not a faulty battery. Place the remote in its charging cradle and run a full charge cycle before use; the warning will clear once the pack reaches operating voltage.