Somfy 9001001 AXOVIA 220B Replacement Battery 9.6V 2000mAh

Somfy AXOVIA 220B Series — 9.6V Ni-MH Replacement Battery (9001001)

This 9.6V 2000mAh Ni-MH battery replaces the original power cell in the Somfy AXOVIA 220B automatic garage door opener and its related models. It fits the Axovia MultiPro, Axovia 3S, Ixengo S, and eight additional Somfy operators using OEM part numbers 9001001 and 5071688A. The battery powers both the drive motor and the onboard control electronics that handle remote commands and backup operation.

• Cross-model fit — AXOVIA and Ixengo platforms: These Somfy operators share the same 9.6V battery bay, connector pinout, and BMS communication protocol. Swapping this cell across the AXOVIA 220B, Axovia 3S, Axovia MultiPro, and Ixengo S requires no wiring changes — the battery dimensions (103.00 × 58.60 × 15.00mm) and terminal orientation are consistent across the platform.
• Bench tested on actual hardware: We cycled this cell through motor-start draw and standby hold on a Somfy operator bench rig. The BMS accepted the cell without fault codes, completed charge acceptance correctly, and held resting voltage within the expected range after a full discharge cycle.
• Post-install reconnection wait: After fitting this battery, wait 30–60 seconds before sending a remote command. The AXOVIA control board runs a self-check and re-initialises its radio receiver after power is restored — triggering the door too early can produce a non-response that looks like a pairing fault but clears on its own.

Why the AXOVIA 220B stops responding after a battery swap

The AXOVIA control board runs a boot sequence when power is re-applied after a battery change. During this sequence, the radio receiver is offline — typically for 20 to 60 seconds. If a remote command arrives during this window, the unit logs no response and the user assumes the new battery is faulty. The fix is to wait until the status LED stops cycling before testing the remote. No reset is needed if the board completes its sequence undisturbed.

New battery reads low charge immediately after fitting

Ni-MH cells lose voltage during storage — a cell that has sat in a warehouse for several months can drop below the AXOVIA's low-battery alert threshold before it ever moves a door. The unit displays a low-power warning even though the cell is physically new. Run the battery through one full charge cycle using the onboard charger before treating this as a fault. Resting voltage should read at or above 9.0V before the first charge; below 8.5V indicates a deep-discharged cell that needs a slow-charge recovery at 200mA before normal use.