Legrand BAES Addressable 6V Replacement Battery 062565

Legrand BAES Addressable / SATI Connected — 6V Ni-MH Replacement Battery (062565)

This is a 6V 1500mAh (9Wh) Ni-MH replacement battery for Legrand BAES Addressable and SATI Connected emergency lighting units. It fits fittings that reference OEM part numbers 062565, 062566, 062665, 062666, HB00080TA, and GRRHC11KT022. Physical dimensions are 71.20 × 50.30 × 14.40mm — confirm these against your fitting before ordering.

• BAES Addressable and SATI Connected compatibility: Both series run a 6V cell with identical connector pinout and float-charge voltage range. The charge controller in each fitting uses the same BMS handshake threshold, so one cell covers both platforms without modification.
• Bench tested on actual hardware: We ran this cell through a full charge-discharge cycle on a Legrand BAES Addressable fitting. The charge controller accepted the cell without fault, float voltage stabilised within the expected window, and the BMS did not flag a capacity error during the test discharge.
• First-cycle test requirement: Within 24 hours of installation, hold the test button for the full rated duration. This allows the charge controller to register the new cell's capacity before your next scheduled compliance test — a cell pulled from storage has not yet been conditioned to the fitting's float charge profile.

Charge indicator staying red after fitting the new cell

The charge controller in BAES Addressable fittings uses a float acceptance window to confirm a valid cell is connected. A cell stored for several months may arrive with a resting voltage below that window, so the controller holds a fault state rather than entering normal charge mode. Leave the fitting on mains for 12–24 hours — the trickle stage will raise cell voltage until the controller accepts it and switches to float. If the LED remains red past 24 hours, check cell voltage directly at the connector: it should read between 6.0V and 7.2V under no load.

Emergency light dims noticeably partway through a duration test

Dimming mid-test on a freshly installed cell points to a cell that has not yet reached its full rated capacity — storage conditioning reduces usable charge, not just resting voltage. The fitting draws constant current during a test, and an undercharged cell hits the BMS low-voltage cutoff earlier than expected. Run one full manual test cycle after 24 hours on mains charge to condition the cell before any compliance test. After that cycle, the cell should sustain the full rated duration at full lamp output.