Streamer YHBAL2-3.3 Emergency Light Replacement Battery 6.4V

Streamer YHBAL2-3.3 — 6.4V LiFePO4 Replacement Battery

This is a 6.4V, 3200mAh LiFePO4 replacement battery for the Streamer YHBAL2-3.3 emergency lighting unit. It fits directly into the YHBAL2-3.3 fitting and restores backup illumination capability during mains failure. Capacity is 3200mAh (20.48Wh) — drawn from the original product specification.

• YHBAL2-3.3 fitting compatibility: The Streamer YHBAL2-3.3 fitting uses a charge controller calibrated for a 6.4V LiFePO4 float voltage of approximately 7.3V. Substituting a NiCd or lead-acid cell at a different nominal voltage will confuse the charge controller and either undercharge or overcharge the cell. This battery matches the voltage rail and chemistry the controller expects.
• Bench tested on actual hardware: We cycled this cell through a full charge and simulated mains dropout. The BMS held discharge cutoff at 5.5V under load, protecting the cell from deep discharge damage. Charge acceptance was confirmed within the controller's float acceptance window.
• First-cycle conditioning on YHBAL2-3.3 fittings: After installation, hold the test button for the full rated emergency duration within 24 hours. This confirms the cell accepts load current and allows the charge controller to register the new cell's capacity before any scheduled compliance or duration test is due.

Charge indicator staying red after new battery installation

A cell stored for months before sale will sit at a resting voltage lower than the charge controller's float acceptance window. The YHBAL2-3.3 controller interprets this as a fault condition and holds the red LED. The controller needs to see the cell voltage climb past its acceptance threshold before it transitions to green. Leave the fitting on mains power for 12–24 hours — the cell voltage should reach approximately 7.2V and the indicator should shift to green.

Emergency light passes installation but fails the timed duration test

A new cell that has not completed one full discharge cycle will not deliver its rated capacity on the first timed test. The charge controller registers the cell as present and charged, but the cell's internal structure has not yet been fully conditioned. Run one complete manual test cycle — press and hold the test button until the light extinguishes — before the formal compliance test. After a full recharge of 24 hours, the cell should hold load for the rated duration at the rated lux output.