Ensure your FAAC gate opener keeps working even when the power goes out with the FAAC 3540.5 Dual Battery Pack. This backup pack includes two 12V, 8Ah sealed batteries plus a jumper, designed to be used in tandem to deliver the required capacity for FAAC’s 24V DC systems. Whether your system is hydraulic (S450H, S800H) or electromechanical (S418, older 24V swing gates), this kit provides reliable emergency power to open/close gates during outages.
The 3540.5 kit replaces FAAC’s single-battery backup (model 3540) and offers greater redundancy. It integrates cleanly into FAAC’s E024U enclosures or other battery compartments, using the jumper wire to connect the two units into the system. With proper installation, you get peace of mind that your gate won’t be stuck closed when the lights go out.
Genuine FAAC replacement battery pack, matching the required specs for FAAC 24V systems.
Sealed lead-acid (or similar sealed battery type) designed for safety and maintenance-free use.
The jumper ensures proper connection between the two batteries so that the backup operates correctly.
Provides safe power backup during outages, reducing risk of being locked out or in.
Always observe safe handling of batteries: avoid short-circuits, discharge, and follow correct polarity.
Make sure power to the FAAC gate opener control board is turned off.
Open the battery compartment or E024U enclosure and remove any old or failing batteries.
Place the two 12V 8Ah batteries into position, observing correct polarity.
Connect the jumper between the positive terminals (or as required) so that the two batteries operate together in backup mode.
Secure wiring: the battery leads should connect to the backup input terminals on the control board.
Close the compartment/enclosure, restore AC/primary power.
Test: Turn off AC power and confirm that the gate can still open/close under battery power. Monitor for how many cycles it holds up and if it fully powers the unit.
Check battery voltage regularly; even in standby, batteries lose charge over time. Replace both batteries together if you notice loss of capacity.
Ensure batteries are kept in a clean, dry, ventilated enclosure. Avoid corrosion at terminals; use battery terminal protectant or grease if needed.
Do not allow batteries to fully discharge for extended periods; this reduces lifespan.
During hot weather, monitor battery temperature; high heat can reduce battery life.
Replace with the same size/type. Mismatched batteries can reduce performance and cause issues.
