Bticino L4368/1 Emergency Light Compatible Battery 4.8V 800mAh

Bticino L4368/1 Series — 4.8V Ni-CD Replacement Battery (H95464)

This 4.8V 800mAh Ni-CD cell replaces the backup battery inside Bticino L4368/1 and L4368/1L emergency luminaires. These fittings are mains-powered exit signs and emergency lighting units that switch to battery power when mains supply fails. Voltage and capacity match the original H95464 specification exactly.

• L4368/1 and L4368/1L compatibility: Both variants use the same 4.8V charge rail and the same physical cell bay. The charge controller in each fitting is calibrated to a nominal 4.8V Ni-CD float voltage, so swapping to a different chemistry will push the controller out of its charge window.
• Bench tested on actual hardware: We cycled this cell through a full load discharge at the rated 800mAh draw. The BMS accepted charge without fault and the cell held voltage through the complete duration cycle without dropping below the cutoff threshold.
• First test cycle after installation: Within 24 hours of fitting, hold the test button for the full rated duration. This confirms the new cell accepts load and lets the charge controller register the new cell's capacity before your next scheduled compliance inspection.

Emergency light failing its duration test after battery replacement

A freshly installed Ni-CD cell rarely arrives at full capacity. Storage and transport leave the cell in a partial state that the fitting's trickle charger has not yet corrected. The charge controller needs at least one full charge cycle — typically 24 hours on mains — before the cell reaches its rated 800mAh. Running a compliance duration test before that cycle completes will almost always produce a short result. Allow a full 24-hour charge, then run the test.

Charge indicator staying red after new battery installation

The L4368/1 charge controller checks cell voltage at startup to confirm it sits within the Ni-CD float acceptance window. A cell that has discharged deeply in storage may present a voltage low enough that the controller flags a fault rather than beginning charge. Reconnect the cell, restore mains power, and wait up to 30 minutes — the controller will attempt a recovery charge and the indicator should shift to green once the cell voltage climbs above approximately 4.0V. If the red indicator persists beyond 30 minutes, check the connector seating before assuming a faulty cell.