How To Change ADT Alarm Backup Battery, DIY

How to change ADT alarm backup battery, DIY.
Are you wondering why you have BAT on the lower right screen of your ADT alarm display? With just a simple backup battery replacement, your problems can be solved. Follow this simple step-by-step video to fix it.
I would rate the difficulty as a 1 out of 5 wrenches.
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[@mrmaddocs68752]

I do it with my bare hands

[@DIYNationTH]

Great job!

[@j2000yahoo1]

Doesn’t the system need to be put into test mode before replacing the battery?

[@DIYNationTH]

I did not, on this specific model.