About this replacement
Kaufel 002277 — 6V Ni-CD Replacement Battery (BGN700-5AWP-FP)
This is a 6V 700mAh Ni-CD replacement battery for the Kaufel 002277 emergency lighting unit. It fits the 002277 fixture directly, restoring backup illumination during mains failure. Voltage and capacity match the original cell: 6V, 700mAh (4.2Wh).
- Kaufel 002277 fitment: The 002277 fixture uses a 6V Ni-CD cell with a specific connector and physical envelope — 142.50 × 19.50 × 17.10mm. The charge controller in this fitting expects Ni-CD chemistry. Swapping to a different chemistry at this voltage will confuse the charge circuit and cause false fault states.
- Bench tested on actual hardware: We ran this cell through a full charge-discharge cycle on the bench. The BMS accepted charge within the expected float window, and the cell held load voltage without dropping below the cutoff threshold during the test duration.
- Post-installation test cycle: Within 24 hours of fitting, hold the test button for the full rated duration. This confirms the new cell accepts load and lets the charge controller register the fresh cell before your next compliance inspection. Do not skip this step — a cell that has sat in storage will not be at full charge on day one.
Charge indicator staying red after fitting the new cell
The 002277 charge controller uses float voltage to confirm the cell is healthy. A cell that has been in storage for months will arrive with a resting voltage outside the float acceptance window. The controller reads this as a fault and holds the red LED. Leave the fitting powered for 24–48 hours — the trickle charge will bring the cell voltage up into the acceptance range and the indicator should transition to green. If it does not clear after 48 hours, check cell voltage directly: it should be reading above 5.4V under no load.
Emergency light dims and cuts short during a duration test
A cell that has not completed a full conditioning cycle will not deliver its rated 700mAh on the first test. The cell capacity is there — it just has not been fully cycled after storage. Run one complete charge-discharge cycle using the manual test button before your compliance test date. After that cycle, the cell will reach closer to its rated capacity. If dimming continues after two full cycles, check the fixture's trickle charge current — sustained overcharge at elevated ambient temperature accelerates capacity fade in Ni-CD cells.