Dual-Lite EVEUGWE Emergency Light Replacement Battery 1.2V 800mAh

Dual-Lite EVEUGWE Series — 1.2V Ni-CD Replacement Battery (784H65)

This is a 1.2V, 800mAh nickel-cadmium cell built to replace the factory battery in Dual-Lite emergency lighting fixtures. It fits the EVEUGWE, EVEUGWEI, EVEURWE, and EVEURWEI models. When mains power drops, this cell supplies the voltage the fixture needs to activate and hold its emergency light output.

• EVEUGWE and EVEURWE series fit: These four models share the same 1.2V NiCd cell format, connector orientation, and charge controller float voltage. One replacement cell covers the whole group without adapter or wiring change.
• Bench tested on actual hardware: We cycled this cell through a full mains-fail simulation. The charge controller accepted the cell, transitioned from charge to float without fault, and the fixture activated cleanly on the test-button trigger.
• First test cycle after installation: Within 24 hours of fitting, hold the test button for the fixture's full rated duration. This forces the cell through one complete load cycle so the charge controller registers its actual capacity before any scheduled compliance inspection.

Charge indicator staying red after new battery installation

NiCd cells leave storage with a suppressed resting voltage — often below the float acceptance threshold the charge controller expects to see. When the controller measures that low voltage, it holds the fault or charge LED red rather than transitioning to green. This is not a wiring fault or a dead cell. Leave the fitting connected to mains for 12 to 24 hours. The controller will slowly bring the cell up through the charge curve; once cell voltage reaches approximately 1.35–1.40V, the indicator should shift to green.

Emergency light failing its duration test after battery replacement

A fresh NiCd cell does not deliver full rated capacity on its first discharge. The cell's internal crystal structure needs at least one complete charge-discharge cycle before it reaches 800mAh. If the fixture fails its 90-minute compliance test immediately after replacement, run one full manual test cycle first, then recharge for a minimum of 24 hours before retesting. Capacity on the second discharge should meet the rated output the fixture needs to pass.