485LM 12V Backup Battery Replacement — Fits Models 8500, 8500W, 8550W, WLED, 8360 & 8360W

The 485LM is a 12V replacement battery designed for DC motor garage door openers that include a backup battery system. When installed, it allows the opener to function as if mains power were present and keeps all safety and security features active during an outage. This 12V replacement battery is compatible with the following models: 8500, 8500W, 8550W, WLED, 8360, and 8360W. Before purchasing, consult your owner's manual or the replacement parts diagram to confirm this part matches your unit.