BAEH IP66 ECO1 Replacement Battery 2.4V 2000mAh Ni-CD 062526

BAEH IP66 ECO1 — 2.4V Ni-CD Replacement Battery (062526)

This is a 2.4V, 2000mAh nickel-cadmium cell for the BAEH IP66 ECO1 emergency lighting unit. It fits units referenced under part numbers 062526, 062552, and BAPI 060894. Swap it when the fitting fails its duration test or shows a persistent fault LED after the original cell has aged out.

• IP66 ECO1 platform compatibility: The 062526, 062552, and BAPI 060894 references share the same 2.4V charge circuit and connector footprint. The charge controller in this fitting expects a Ni-CD cell — substituting a different chemistry trips the float voltage threshold and prevents a clean charge cycle.
• Bench tested on actual hardware: We ran this cell through a full charge-discharge cycle on the IP66 ECO1 circuit. The charge controller accepted the cell voltage on connection, moved from red to green within the expected window, and the BMS showed no undervoltage fault at load activation.
• Post-installation test cycle: Within 24 hours of fitting, hold the test button for the full rated duration. A new cell shipped from storage may sit below the float acceptance window — one complete test cycle lets the charge controller register the cell and sets a valid baseline before the next scheduled compliance inspection.

Charge indicator staying red after new cell installation

The IP66 ECO1 charge controller uses a float voltage window to confirm the cell is present and accepting charge. A new Ni-CD cell stored for several months can arrive with a resting voltage low enough to sit outside that acceptance window. The controller interprets this as a fault rather than a charging state. Leave the fitting powered for 24 hours — the trickle charge will bring the cell voltage up to the point where the controller registers it and switches to green.

Emergency light dims noticeably partway through a duration test

Dimming mid-test means the cell is not delivering its rated 2000mAh under load — this is normal on first activation after a replacement. Ni-CD cells need at least one full charge-discharge cycle to reach stated capacity. If dimming persists after a second full test cycle, check that the cell connector is fully seated and that the charge controller has not been running a faulty trickle charge that never brought the cell to full charge voltage. A fully conditioned cell should hold lamp output at rated level through the complete test duration.