LIFTMASTER BATTERY 29-NP08-12

LiftMaster 29-NP08-12 Battery Backup – 12V 8Ah for FDCL U Operator

The 29-NP08-12 Battery Backup is a 12V, 8Ah sealed lead-acid (SLA) battery designed to provide reliable auxiliary power for use with the FDCL U Advanced Logic Industrial Duty Commercial Door Operator. This backup unit ensures operational continuity during power outages and supports essential safety self-check routines when paired with the compatible fire door operator model.

Engineered for industrial fire door applications, this battery helps maintain code compliance for emergency power systems. Depending on your operator’s model and power configuration, two batteries may be required.

Key Features

• Voltage/Capacity: 12V, 8Ah SLA battery

• Designed for: FDCL U industrial fire door operator

• Self-testing support: Performs scheduled checks when installed with compatible operator

• Ensures continuity during outages for emergency or code-critical systems

• Supports safety protocols—verify local codes for compliance

Electrical Specifications

• Standby Voltage: 13.5 – 13.8V

• Cycle Use Voltage: 14.4 – 15.0V

• Initial Charging Current: < 0.24A

Alternate Part Numbers

This item may also be listed as:

• 012381175673

• O2-K29NP0812

• K-29-NP08-12

• 29NP0812

• K29-NP08-12

• 29-NP08-12

This battery backup is essential for facilities using LiftMaster FDCL U operators, where power continuity and fire-rated safety compliance are critical.

 Some systems require two batteries depending on phase and model. Always confirm with the operator manual before ordering.