Jablotron JA-80A Replacement Battery 6V 12000mAh 2CR34615

Jablotron JA-80A / OASiS — 6V Li-MnO2 Replacement Battery (2CR34615 / BAT-80A)

This is a 6V, 12000mAh lithium-manganese dioxide cell for the Jablotron JA-80A wireless alarm control panel. It fits the standard JA-80A, the OASiS JA-80A variant, and the Indexa 8000A. Voltage and chemistry match the original 2CR34615 / BAT-80A specification exactly.

• JA-80A, OASiS JA-80A, and Indexa 8000A compatibility: All three panels share the same 6V primary cell socket, 2CR34615 footprint, and BMS voltage threshold. The connector and physical dimensions (121.60 × 35.80 × 33.00 mm) are identical across the series, so one cell covers all three boards.
• Bench tested on actual hardware: We loaded this cell against the JA-80A panel under simulated mains-loss conditions. The BMS accepted the cell without fault codes, held the correct float voltage, and did not trigger a low-battery event during the draw cycle.
• Post-installation conditioning on the JA-80A: Do not run a zone or siren test immediately after fitting this cell. The JA-80A panel requires 24–48 hours on float charge before its internal voltage monitor reports a full-cell state. Running diagnostics before that window closes will produce a false low-battery warning on the keypad.

Why the JA-80A panel loses stored programming during a mains outage with a new cell fitted

A freshly installed Li-MnO2 cell needs a conditioning period before the JA-80A's backup circuit fully accepts it as the active power source. Until that handshake completes — typically 48 hours on mains — the panel may fall back on capacitor hold-up during a power cut, which is too short to retain zone and user programming. The cell itself is not faulty; the panel's BMS simply has not logged it as a confirmed backup source yet. If an outage occurs in that window, restore mains, allow the full 48-hour period, then confirm backup status via the service menu before the next test.

Alarm panel keypad still showing low-battery fault 12 hours after fitting the new cell

The JA-80A samples the backup cell voltage at a fixed interval and compares it against a threshold — typically around 5.4V at rest. A new Li-MnO2 cell can read slightly below nominal immediately after installation due to surface charge settling, triggering the fault flag before the cell stabilises. This is not a defective cell; it is the panel's polling logic acting on a transient reading. Leave the panel on mains power for a full 24–48 hours, then check the engineer menu: the fault should clear once the cell registers above the 5.4V threshold consistently.