Permanently Stop Beep - Fios ONT Battery Backup Unit (Free!) 

This is absolutely brilliant. I followed this exaclty and it took me about 5 minutes. I would add just one comment. I very carefully lifted the speaker off the board with a tiny flat tip screw driver. I don't suggest Ripping it off with pliers. If you use brute strength and craxk teh mother board, you will be PHUCT. Other than that, this probably saved me from jumping off a tall building from that crazy beeping.

This is the correct way to permanently solve the backup battery beeping problem NO MATTER WHAT YOUR UNIT LOOKS LIKE. Different units were used in different years

Wow! Wish I knew about this 15 years ago! 5 minutes and permanently fixed. Thank you.

Agree with comment about taking care with the Piezo speaker. Nice to see someone using an old-fashioned screwdriver rather than a power drill. Tip of the hat for that

I have listened to this beeping for more than 5 years. I was on my way to the box to rip off the wall. Seriously. Rip it off!!! I decided to check here. Thank you. No one unalivened here today. I'll be back to tell you how it went.

I just did this to mine. I can't believe I had replaced 2 batteries before this, better late than never!

Thanks so much for this. My really BBU randomly started beeping even with a brand new battery fully healthy and charged. Now I can just rely on occasional checks with a DMM without that incessant alarm.

Thank you!! I was this close to smashing the whole thing into a million pieces, I only just replaced the stupid battery a year ago!!

Thank you! You are a true hero!

I’m a happy man now! Our only landline phones are cordless phones (which won’t work in a power outage anyway because the base unit needs power for the phones to work). So the battery backup is pretty much useless to us. And let’s face it, it is 2023. I think we’ll survive without a landline phone if the power goes out. Plus, the only people who use that number are telemarketers and my mother in law haha. I replaced the battery once, a couple years ago. I was about to do it again when the woman at Batteries and Bulbs, the store where I bought it, tested the existing battery and said there was nothing wrong with it. She gave me advice on what to do to eliminate the beeping but it eventually would happen again. Followed this video to a T and voila! No more annoyance - ever again! Everything else on my system continues to work.

I was worried about this and spent so much time trying to get a new battery. I don't need it if I don't have a landline?! THANK YOU!!!

Thank you, easiest hack since we don't need battery. No more annoying beeps.

Thank you! The internet has set us free!

I finally got around to doing this today. I've been swapping and recharging batteries twice a year, sometimes more, for more years than I want to admit to. Really hate permanently altering a device like this, but enough is enough. I believe the recharging circuit in the device has failed, but Verizon wouldn't do anything and I'm sure Frontier won't either. Thing is, the batteries were always just fine, not even discharged much. Everything is working fine now. TV and internet went down while I had it unplugged obviously, but it all reconnected perfectly when I plugged the ONT back into the cable and power supply. Had to slot out the hole where the cable comes in because the installer left zero slack in the cables, but that was easy with just a pair of wire cutters. Thanks for making this how-to video.

Awesome worked perfectly wished have seen this 4 years ago saved me 4 new batteries

Thanks, this worked!!!

I have a different style Fios BBU and merely disconnecting the negative battery terminal clip worked for me. Now eventually I should recycle the battery, but this was a quick fix.

May you drive a Ferrari in heaven! Thanks for permanently stopping the torturing beeps in our basement.

now THAT! is a solution!!!!! Thanks. But, I have a different model panel and cannot seem to get to the panel.... what do i do?

Another method that worked for me without damaging your ONT (which I think still technically belongs to Verizon?) Mine had a DC input jack on the side -- these are meant to provide battery backup power from an external source. I plugged a universal DC adapter I had (with the proper size and polarity tip and correct voltage setting) and it silenced the alarm. The unit just assumed some external battery was supplying the backup power, when it reality it was just an adapter plugged into the wall socket. The trick is getting a magnifying glass and carefully inspecting the input jack on the ONT -- it should have tiny text indicating the proper DC voltage and tip positive/tip negative style of adapter needed. The tip size is just trial and error - find the one that fits.

Sounds great but I’m in a rental and can’t remove it but please tell me how to just stop it from beeping. My internet is not with Verizon.

I always assumed the Fios/Frontier box in my garage needed to be powered for internet to work to translate the signal coming in but apparently not?

Dang, removing screws next to that vent made me kinda nervous lol.

What about that box not turning back on after unplugging the green connector now I’m out of internet ! Is there a fix for that that I can quickly take care of ?

I just did this operation and it went smoothly BUT now I have zero internet. Thanks

I have a land line and when the power went out so did my landline. It never worked nor did my neighbors. We both couldn't figure out the point of the battery because it didn't work on anyone's. I pay Verizon enough. IM not paying $40 for a battery that doesn't do anything. I removed the battery some say this may do it depending on the age of the unit. I'll have to wait and see.

gosh does it have to be this complex?

i dont know when i unpluged the green one, it disconnected my internet. so i cant do it this way

I need this but my unit looks totally different wahhhh

Just hold down the silent alarm button for 10 seconds and that should also reboot the Ont and no more beeps jezzz

BigBossBilly Will Smash The Verizon Fios Box In August 7 2021

The primary function of the box is to convert a fiber optic signal to an electrical signal of bits (1's and 0's) that can be used by your Fios Router. That is a) why there's the little "green thing" that is never disconnected in the video, and b) why you need to reconnect the box after you remove the alarm unit from the circuit card: the "green thing a) does the conversion, and b) therefore needs to be supplied with the correct flavor and voltage of electricity.