Liftmaster 485LM is the replacement battery for the EverCharge standby power system for Liftmaster 3850, 8360, and 8550 garage door openers. 12 volt 5ah.Manufacturer original equipment replacement part.
Includes:- 485LM Battery
Compatible with: Liftmaster 3850, 8360, 8550 garage door opener.
Replacing the Battery:
- Disconnect power to opener.
- Using a Phillips head screwdriver, remove the battery cover on the motor unit.
- Remove the old battery and discard.
- Partially insert new battery into motor unit with terminals facing out.
- Connect red (+) and black (-) wires from motor unit to corresponding terminals on battery.
- Replace battery cover.
- Reconnect power.