Remote in this video - [ Ссылка ]
2032 Battery you need - [ Ссылка ]

Here is a quick little demonstration video on how to change your dead or weak 2032 battery in your Chamberlain MC100-P2 garage door opener. It's fairly straight forward but it's useful to see someone else do it first. Hope you found this helpful!

Chamberlain Group MC100-P2 Universal Garage Door Opener Mini Keychain Remote, Small, Black
Wireless programming slim compact design fits easily in your pocket
2 button design to control multiple garage doors, entry gates, and myq enabled lights
Simple, wireless programming gets you connected fast
Chamberlain Group MC100-P2 Universal Garage Door Opener Mini Keychain Remote
Features:

Universal Wireless Programming: Universal wireless programming means easy setup with no cutting into garage wiring or installation of an unsightly receiver. Box includes visor clip, 3V coin-cell lithium CR2032 battery and instruction manual.
Two Button Universal: Two-button universal remote allows active families to maintain security and peace of mind. Works with over 90% of all garage door openers installed in North America, including all major brands such as Chamberlain, LiftMaster, Craftsman, Genie and many more.
Easily attaches to backpack, car keys or dog leash.
Offers enhanced control of up to two different garage door openers.
Works with over 90% of all garage door openers.

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