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EX50Li Mandatory Firmware Update

Intellisense E2 firmware update 11, which includes bug fixes and improvements for your EX50Li battery-powered fan.

This update:

• Resolves an issue where fan’s internal charger is unable to completely charge battery.

• Improves charging profile for long-term battery storage.

• Fixes bug causing control panel LED light to show incorrect color at full charge.

The bugs identified, and resolved with this firmware update, are limited to a small batch of fan units and do not affect the performance of the fan. However, it may lead to the fan’s inability to fully charge the battery packs with the fan’s internal charger, requiring use of external battery charger.

This program does not affect your warranty.


This firmware update is mandatory for the effected serial numbers. If your EX50Li unit is eligible, please contact the Customer Service at Euramco Group HQ to schedule an update at your nearest Authorized Service Center.

Serial Numbers

Model Item Numbers Serial Numbers Ending in…
EX50Li EL5500 9155-9207, 9720 and 9887

Firmware Update Process

This program is for firmware update only. It does not affect safety or performance of the ventilator.

Updates should only be conducted by Euramco Authorized Service Centers. A firmware update requires less than 30 minutes to complete.

Additional Information

Intellisense motor controllers are the smartest, most robust motor controllers available in the fire service. High performance, precision control, dual power (AC/DC) capabilities, and advanced battery charging—designed specifically for the hard jobs. For more information, visit

To schedule your firmware update, please contact our Sales Engineers by phone: +1 619. 670.9590 or email: Our operating hours are from Monday-Friday 8:00 a.m. – 5:00 p.m. PST.

We understand the needs of the fire service, and will ensure the quickest turnaround times possible.

EX50Li Mandatory Firmware Update