Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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Keypad drains batteries rapidly

I have a Wayne-Dalton garage door with a Chamberlain Whisper Drive Security+ garage door opener. It's about a year-and-a-half old. Everything has worked fine until recently. Now, the keypad will drain a brand new 9 volt battery in 2-3 weeks, depending on the brand of battery. I've tried expensive ones and cheap ones. There's very little difference. Any idea what might cause this? Thanks. Forrest

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  • fortymiles40 Mar 10, 2009

    Hi, Glen -

    Thanks for the suggestion! I'm embarrassed to say I never even thought of checking that, so I tried it and have watched it for a couple nights now. It seems to be working OK so far, so I'm guessing it's just a defective unit. After complaining a bit more to the company, they have offered to send me one at "substantially less than retail." I think I'll explore that option. Thanks again for the help.


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Keypads on average have a battery life expectancy of 3-5 years depending on the usage , if your garage is a main thouroughfare like so many homes are they will last for 1-2 years , so what i would sugest is use top grade duracell batterys for this keypad and also check your keypad at nighttime just to see if the pad is lit up , generally when you use it it will stay lit for approx20-30 seconds and shut off , if one of the rubber keys are warped and are stuck from heavy usage ,you would never notice it and your lights in the keypad can be running day and night , thats why i ask you to check it at night! if the lights are off when you approach it then this would not be the issue but it,s one way to find out what,s causing your batteries to run down so fast ,I would definetly try that first Forrest , 2-3 weeks is unheard of and you might even be able to get a replacement from the manufactuer for being possibly defective , Hope i was able to help you with some idea,s Forrest and if you thought i was helpful please leave me a nice rating Sincerely Glenn Mayer

Posted on Mar 05, 2009

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