Lithonia ELB 0701N 7.2V Emergency Light Replacement Battery

Lithonia LV S W R 120/277 ELN UM — 7.2V Ni-CD Replacement Battery (ELB 0701N)

This is a 7.2V 2000mAh Ni-CD battery for the Lithonia LV S W R 120/277 ELN UM emergency lighting unit. It replaces OEM part numbers ELB 0701N, 60619-1, 61117-1, and 4PH22. When the original cell depletes or fails, this battery restores the unit's ability to power emergency illumination during a mains failure.

• LV S W R 120/277 ELN UM compatibility: These Lithonia units use a fixed 7.2V Ni-CD pack with a specific cell arrangement that matches the onboard charge controller's float voltage and current profile. Swapping chemistry or voltage breaks that match and prevents proper charge termination.
• Bench tested on actual hardware: We ran this cell through a full charge cycle and a load test on the LV S W R platform. The BMS accepted the cell, float charge engaged correctly, and the charge indicator advanced to green within the expected window.
• 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 under real conditions and allows the charge controller to register actual cell capacity before your next scheduled compliance inspection.

Charge indicator staying red after new battery installation

A freshly installed Ni-CD cell that has sat in storage will often present a resting voltage below the charge controller's float acceptance window. The controller reads this as a fault condition and holds the red indicator rather than entering normal charge mode. The fix is to leave the unit on mains power undisturbed for a full 24-hour charge cycle. After that period, the cell voltage should reach at least 8.4V at rest, and the indicator should advance to green.

Emergency light dims and cuts short during a duration test

This happens when the cell has not completed a full initial charge before the test is run. Ni-CD cells need one complete charge cycle to reach rated capacity — a partially charged cell will hit the low-voltage cutoff early and drop output. If the unit dimmed during test, put it back on mains for 24 hours before retesting. A cell that still dims after a full charge cycle has likely developed memory effect or internal resistance damage and needs replacement.