Replace Batteries In 893MAX Remote Controls Pry open the case first in the middle, then at each side with the visor clip. Compatible with 315 MHz or 390 MHz garage door openers manufactured after January 1, 1993. 25 years! that have the colored learn Insert the replacement battery positive side Remove the old battery. Dispose of old batteries properly. Liftmaster 893MAX 3-Button Visor Remote Control The Liftmaster 893MAX 3 Button Visor Remote Control Garage Door Opener is easy to install and allows you to control up to three garage doors or gates. Works on all Liftmaster, Chamberlain, Sears units from 1993 to present with 390 or 315 mhz. This model is compatible with 315 MHz or 390 MHz garage door openers manufactured after January 1, 1993. The Liftmaster 893MAX can be used as a replacement remote control for 80 Series, 970 Series, and 370 Series LiftMaster remote controls. 893MAX Can be used as a replacement remote control for 80 Series, 970 Series, and 370 Series LiftMaster remote controls. New Liftmaster 893max Visor Style remote control Program three different Lift Master remotes into one unit. 893MAX Liftmaster Remote These instructions cover the Liftmaster 890MAX, 893MAX, and 895MAX garage door opener remotes The 893MAX and 890MAX Liftmaster garage door opener remotes can be programmed to operate three garage door openers or gate operators, or MyQ® enabled light accessories.