About this replacement
Kaufel 002006 — 6V Ni-CD Replacement Battery (BGN7000-5DWP-T)
This is a 6V, 8000mAh nickel-cadmium replacement cell for the Kaufel 002006 emergency lighting fitting. It slots into the existing housing and connects to the onboard charge controller. Voltage and capacity match the original specification: 6V, 8000mAh (48Wh).
- Kaufel 002006 fitting compatibility: The 002006 charge controller is tuned to the float voltage and internal resistance profile of a 6V Ni-CD cell. Swapping to a different chemistry would put the charge voltage outside the acceptance window and damage the cell over time.
- Bench tested on actual hardware: We ran this cell through a full charge cycle and simulated mains failure test. The BMS accepted charge cleanly, and the cell delivered consistent output under load without voltage drop or cutoff at the controller threshold.
- First-cycle test procedure: Within 24 hours of installation, hold the test button for the full rated duration. This confirms the cell accepts load correctly and lets the charge controller register the new cell capacity before the next scheduled compliance inspection.
Charge indicator staying red after new battery installation
A freshly installed cell that has been in storage can sit below the float acceptance voltage the 002006 controller expects to see. When the terminal voltage is too low, the controller holds in fault mode rather than switching to charge. Leave the fitting connected to mains for 12–24 hours — most controllers will recover and switch to green once the cell climbs above approximately 6.4V. If the indicator stays red past 24 hours, check the connector contacts for corrosion before assuming a controller fault.
Emergency light dims and fades partway through a duration test
Dimming mid-test usually means the cell has not completed its first full conditioning charge before being tested. Ni-CD cells shipped from storage are deliberately discharged for transport safety, so the capacity available on day one is lower than rated. Run the fitting on mains charge for a full 24 hours after installation, then retest. If the light still dims early after a full charge cycle, measure the open-circuit voltage — a healthy 6V Ni-CD cell should read between 7.2V and 7.6V immediately after charge.