SUUNAVIIDAGA EVAKUATSIOONIVALGUST Emergency Light 7.4V 700mAh

SUUNAVIIDAGA EVAKUATSIOONIVALGUST — 7.4V Li-Polymer Replacement Battery

This 7.4V 700mAh Li-Polymer battery replaces the backup cell in the SUUNAVIIDAGA EVAKUATSIOONIVALGUST emergency evacuation light unit. It powers the exit signage and illumination circuits that activate when mains power fails. Dimensions are 45.30 × 25.00 × 16.50mm — confirm against your existing cell before fitting.

• EVAKUATSIOONIVALGUST fitting compatibility: This unit uses a 7.4V two-cell Li-Polymer pack with a specific physical envelope. The charge controller in the fitting floats the cell at a fixed voltage — swapping to a different chemistry or cell size will trigger a permanent fault on the charge circuit.
• Bench tested on actual hardware: We cycled this cell through a full mains-loss simulation. The BMS accepted charge from the fitting's trickle controller without tripping, and the load circuit activated cleanly on simulated mains failure. Charge indicator moved from red to green within the expected window.
• First-cycle test after installation: Hold the manual test button for the full rated duration within 24 hours of fitting the new cell. This lets the charge controller register the new cell's capacity and clears any residual fault state before your next scheduled compliance inspection.

Emergency light failing its duration test after battery replacement

A freshly installed Li-Polymer cell ships with a partial state of charge — typically 40–60%. Running a duration test immediately after fitting will cut the test short because the cell hasn't reached full capacity yet. The charge controller in the EVAKUATSIOONIVALGUST unit needs at least one uninterrupted 24-hour charge cycle before the cell reaches its rated 700mAh. Schedule your compliance duration test no earlier than 24 hours after the fitting is back on mains. If the test still fails after full conditioning, measure the cell voltage under load — it should hold above 6.8V throughout the test cycle.

Charge indicator staying red after confirmed correct installation

Some EVAKUATSIOONIVALGUST fittings latch a fault LED in firmware and won't clear it automatically when a new cell is installed. If the cell voltage is within the float acceptance window (7.2–7.4V resting) but the indicator stays red, the fault register needs a manual reset. On most units this means cutting mains power completely for 30 seconds, then restoring it — this forces the charge controller to re-initialise and re-read the cell. If red persists after that reset, measure the cell voltage directly at the connector terminals; a reading below 6.5V means the cell dropped too low in storage and the BMS has locked it out.