How do I replace the battery? I can't get the unit open

This is moderately difficult. ON the side of the unit, there is a dimple. You need to force a small straight blade screwdriver or the clip into it and then pry the side of it open.Once this is poipen, slifde the small screwdriver around the edge, prying it all the time until you get it open.

ASIN	B075MQCH2P
ASIN	B075MQCH2P
Batteries	1 LR44 batteries required.
Batteries	1 LR44 batteries required.
Batteries Included?	No
Batteries Required?	Yes
Battery Cell Type	Lithium Metal
Color	One
Customer Reviews	4.5 4.5 out of 5 stars (2,360)
Customer reviews	4.5 4.5 out of 5 stars (2,360)
Date First Available	6 November 2017
Date First Available	6 November 2017
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Item Weight	41 g
Item model number	TCK88100
Item model number	TCK88100
Manufacturer	TCK TECH
Manufacturer	TCK TECH
Package Dimensions	8.71 x 6.3 x 2.21 cm; 41 g
Package Dimensions	8.71 x 6.3 x 2.21 cm; 41 g
Part number	TCK88100
Size	One
Special Features	Ergonomic
tech_spec_battery_description_toys	Lithium

TCK TECH Replacement for Liftmaster 371LM Garage Door Remote Opener

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