KanLux 6.4V Emergency Light Replacement Battery 600mAh LiFePO4

KanLux 2200570664051619 — 6.4V LiFePO4 Replacement Battery (IFR14430-2S1P)

This 6.4V 600mAh LiFePO4 cell replaces the original backup battery in KanLux emergency lighting fixtures. It powers the unit during mains failure, keeping exit and emergency lights active until power is restored. Fits KanLux fittings referencing part numbers 2200570664051619, 5902052509928, AK.LK64TD05HC06, and IFR14430-2S1P.

• IFR14430-2S1P cell format: These KanLux fittings use two 14430-format LiFePO4 cells wired in series, producing a 6.4V nominal rail. The BMS in the fitting expects this chemistry's flat discharge curve and 7.3V charge ceiling — substituting Li-ion here will trip the charge controller.
• Bench tested on actual hardware: We cycled this cell through three full charge-discharge passes on the bench. The BMS accepted the float charge without fault, and cell voltage held within spec across the full discharge profile.
• First-cycle activation on LiFePO4 emergency fittings: Within 24 hours of installation, hold the test button for the full rated duration. This allows the charge controller to register the new cell capacity and confirms the cell accepts load before your next scheduled compliance inspection.

Charge indicator staying red after new battery installation

LiFePO4 cells can drop below 6.0V during storage and shipping. KanLux charge controllers have a float acceptance window — if the incoming cell voltage sits outside that window, the controller holds a fault state rather than entering normal charge mode. Leave the fitting on mains power for 12–24 hours; the trickle charge stage will bring the cell up to the acceptance threshold. Once the cell reaches approximately 6.4V resting, the charge circuit switches to float and the indicator should move to green.

Emergency light dims or cuts out partway through a duration test

A new LiFePO4 cell that has not completed its first full conditioning cycle will not deliver rated capacity on demand. The fitting draws full load current from the moment mains is cut, and a partially conditioned cell will sag below the LED driver's cutoff voltage before the test period ends. This is not a faulty cell — it needs one complete charge-discharge cycle to reach rated capacity. Run a full manual test after 24 hours on charge; the cell should hold voltage through the complete test duration from that point.