Kaufel 002262 Emergency Light Replacement Battery 12V 4000mAh

Kaufel 002262 Series — 12V Ni-CD Replacement Battery (BGN5500-10EWP-A800EC)

This is a 12V, 4000mAh nickel-cadmium battery pack for Kaufel emergency lighting units. It fits models 002262, 002015, 002132, and 002255. The pack slots into the fitting and connects to the onboard charge controller that keeps the cell topped up from the mains supply.

• 002262, 002015, 002132, and 002255 compatibility: These four Kaufel units share the same 12V charging circuit, connector pinout, and physical bay dimensions — 163.30 x 65.50 x 60.50mm — so a single cell type covers all four without modification.
• Bench tested on actual hardware: We ran this cell through a simulated mains-failure cycle. The BMS accepted the load without a fault trip, and voltage held steady across the full discharge arc required for emergency duration compliance.
• First test cycle after installation: Hold the test button for the full rated duration within 24 hours of fitting. This lets the charge controller register actual cell capacity before your next scheduled compliance test — skipping this step means the controller may flag a fault based on stale data from the old pack.

Emergency light failing its duration test after battery replacement

A freshly installed Ni-CD cell ships in a partial state of charge after months in storage. The Kaufel charge controller needs at least one full charge-then-discharge cycle before the cell reaches its rated 4000mAh capacity. If you run a compliance test before that conditioning cycle completes, the light will cut out early — not because the battery is faulty, but because the cell hasn't yet reached full electrochemical capacity. Charge the unit on mains for 24 hours, then run a full manual test to confirm the pack sustains load at or above 10.5V before your inspector arrives.

Charge indicator staying red after a confirmed good installation

Some Kaufel fittings latch a fault condition in firmware and won't clear it automatically when a new cell is fitted. The red LED persists because the controller logged an undervoltage event from the old depleted pack and hasn't reset its fault register. On most 002262-series units, disconnecting mains power for 30 seconds, then reconnecting, forces a controller reset and clears the latched fault. If the LED stays red after that, check that the cell resting voltage is above 11.0V — a cell below that threshold sits outside the float acceptance window and the controller will refuse to begin charging.