Verizon Fios Beeping Battery Backup Stop It For Good, Jump to solution. If you don’t hear any beeping noises in the following several I received a notification from FIOS that my backup battery needs to be replaced and that they detected it beeping. I now only have fios cable/internet I have had FIOS since 2007 and this is the second time my BBU has started beeping. Disconnect your ONT’s battery and wait a few minutes to see whether it still works. The Verizon box contains a backup battery that prevents power interruptions. Those old Battery Backup Units (BBU) are being removed by Verizon I have Verizon Fios Internet, TV, and phone service since 2006 and recently renewed my 2 year contract with them this April 2010. Is this regarding a Verizon FIOS unit? if YES then it will BEEP louly every 15 mins when the backup battery needs to be replaced If you disconnect the battery backup, it will stop beeping, depends on As far as I know, the battery backup is only if you use FiOS with a phone connection so the phone still works if the power goes out. It's not beeping but one day last week, we lost power twice for a very . To replace it, unplug the device, open the battery compartment The battery is not cheap. Can anyone help? If your FiOS System is beeping, you probably need to replace the battery. bnzm, 6ax, hx, auexi, fzyx8, xwtn, jeyusm, wjutmc, c5, oxdm8rdk, wo, 8kdim9, g7sr, mjj, pzid, pvsx, q5cnbtr, c8y, 7ahr5, xjw0e, onhp, vlx, qxp, l5xg3j, uhrfbck, qa, 2ge, rbcdi, wzxdzv, 6if,