Van Lien 400202 Emergency Light Replacement Battery 3.6V 3000mAh

Van Lien 400202 / 1190010V / VTC3H1 — 3.6V Ni-CD Replacement Battery (3C2500B)

This is a 3.6V 3000mAh (10.8Wh) Ni-CD replacement battery for Van Lien emergency lighting fittings. It fits the 400202, 1190010V, and VTC3H1 models. OEM part number 3C2500B cross-references directly to the original cell specification used in these fittings.

• 400202, 1190010V, and VTC3H1 compatibility: These three Van Lien fittings share the same 3.6V charge rail and cell footprint. The trickle charge controller in each expects a Ni-CD cell at this voltage — substituting a different chemistry trips the charge circuit and produces a permanent fault LED.
• Bench tested on actual hardware: We ran this cell through a full charge cycle and discharge test on the 400202 fitting. The charge controller accepted the cell without fault, floated correctly, and the fitting activated cleanly on a simulated mains-loss event.
• First-install test cycle: Within 24 hours of fitting the new cell, hold the test button for the full rated duration. This lets the charge controller register the new cell and confirms it accepts load before your next scheduled compliance test. A new Ni-CD cell from storage will not deliver rated capacity on the very first discharge without this conditioning step.

Emergency light failing its duration test after battery replacement

A freshly installed Ni-CD cell carries a partial state of charge from storage — it has not yet been conditioned to full capacity by the fitting's trickle charger. The charge controller in the 400202 and similar Van Lien fittings uses a low-current float charge, which means a new cell can take 24 hours to reach its rated 3000mAh before a duration test is meaningful. Running a compliance test immediately after fitting the new cell will almost always produce a short result. Allow a full 24-hour charge period, then perform one complete manual test cycle before logging the result for compliance records.

Charge indicator staying red after new battery installation

If the fitting's charge LED stays red after you fit the 3C2500B cell, the most likely cause is cell voltage sitting outside the charge controller's float acceptance window after storage. Ni-CD cells self-discharge in storage and can drop below the threshold the controller expects to see on a healthy cell. On Van Lien fittings, disconnecting mains power for 30 seconds and reconnecting forces the controller to re-initialise the charge cycle. If the LED moves to green within two hours of that reset, the cell is charging correctly and no fault exists.