LumaPro 6CGL5 Emergency Light Replacement Battery 2.4V 800mAh

LumaPro 6CGL5 — 2.4V Ni-Cd Replacement Battery (48H468)

This is a 2.4V, 800mAh Ni-Cd replacement battery for the LumaPro 6CGL5 emergency lighting unit (OEM part 48H468 / 48H468A). It slots into the fixture's internal battery compartment and powers the lamp during mains failure. The 6CGL5 is a ceiling-mounted emergency exit light — this cell is what keeps the light on when grid power drops.

• 6CGL5 fixture compatibility: The 6CGL5 uses a low-voltage Ni-Cd charge circuit tuned to a 2.4V nominal cell. Swapping to a different voltage or chemistry confuses the charge controller and prevents the cell from reaching full capacity — stick to 2.4V Ni-Cd only.
• Bench tested on actual hardware: We ran this cell through a mains-interrupt simulation. The BMS accepted charge without fault, voltage settled at float within the controller's acceptance window, and the lamp activated immediately on simulated power loss.
• First-cycle conditioning for emergency fixtures: Within 24 hours of installation, hold the test button for the full rated duration. This forces one complete discharge cycle and allows the charge controller to register the new cell's capacity before your next compliance inspection.

Emergency light failing its duration test after battery replacement

A fresh Ni-Cd cell shipped in storage state holds far less charge than its rated 800mAh. The 6CGL5 charge controller trickle-charges at a fixed current, so the cell needs a full uninterrupted charge period — typically 24 hours — before it can deliver rated capacity under load. Running a duration test immediately after fitting almost always produces a short runtime and a failed compliance result. Let the fixture charge overnight, then run the manual test the following day.

Charge indicator staying red after new battery installation

The 6CGL5 charge controller checks cell voltage before entering float mode. A cell that has self-discharged during storage can present a voltage low enough that the controller holds the fault state rather than transitioning to green. This is not a defective cell — it is a depleted one. Leave the fixture on mains power for a full 24-hour charge cycle. If the indicator has not shifted to green after that period, confirm mains supply to the fitting is stable and the cell terminal voltage is climbing above 2.2V.