Fire alarm keeps beeping even after several battery changes

Hallo! Me, my brother, father and mother are currently dealing a situation with our fire alarms. The issue started at either 5 or 6 AM and it is currently 10 PM. The fire alarm keeps beeping even after it has gone through several battery changes. The worse part is that it’s outside my door and is so loud to where I’ve heard it in my sleep. We’ve used 3 different brands, have made sure to close it tightly and have tried taking out the battery but it continues to beep. Is there anyone who might know why this keeps happening???

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u/Sukiufr — 1 day ago