Welcome to Comcast Help & Support Forums
Find solutions, share knowledge, and get answers from customers and experts

New to the Community? Start here.

5,785,897

members

10

online now

1,936,545

discussions

Top

Phone Modem Battery Backup does not last very long

Frequent Visitor

Phone Modem Battery Backup does not last very long

During a recent power failure, I found that my phone would not work the first time that I tried to use it.  This is the second time that this has happened.  A Comcast Tech came and replaced the battery after the first failure.  Since this power failure occurred while I was asleep, my phone was not used until I picked it up to call the power company.  I was told that the battery would last for 4 hours of talk time.  This was obviously a lie.  If Comcast cannot fix this problem, I will have to switch back to Verizon.

Cable Expert

Re: Phone Modem Battery Backup does not last very

You can order a fresh battery at this LINK, no charge.  Fresh batteries will last around 8 hours if your on the phone or not.

 

Remember during a power outage, you must use a wired phone connected to your eMTA or inside phone wiring as cordless phones need their own power for the base and will not operate during a power outage.




Community Icon
I am not a Comcast employee, I am a paying customer just like you!
I am an XFINITY Forum Expert and I am here to help. For information on the program click here.
We ask that you post publicly so people with similar questions may benefit from the conversation.

Was your question answered? Mark it as an accepted solution!solution Icon
Community Icon
I am not a Comcast employee. I am a paying customer just like you!
I am an XFINITY Forum Expert and I am here to help.
We ask that you post publicly so people with similar questions may benefit.

Was your question answered? Mark it as an accepted solution!solution Icon
Community Icon
I am not a Comcast employee.

Was your question answered?
Mark it as a solution!solution Icon

Frequent Visitor

Re: Phone Modem Battery Backup does not last very

The battery was replaced only a couple of months ago.  The phone that I use during power outages is an old Princess phone.  The original battery that came with the moden when it was installed only lasted less than an hour when power was disconnected.  I think that there is just something wrong with the modem.

Cable Expert

Re: Phone Modem Battery Backup does not last very

The Comcast Cares Team has been notified and will contact the local group.

 

Watch this post and your email for updates from the team during the business week.

 

Perthaps the tech put in a used battery.




Community Icon
I am not a Comcast employee, I am a paying customer just like you!
I am an XFINITY Forum Expert and I am here to help. For information on the program click here.
We ask that you post publicly so people with similar questions may benefit from the conversation.

Was your question answered? Mark it as an accepted solution!solution Icon
Community Icon
I am not a Comcast employee. I am a paying customer just like you!
I am an XFINITY Forum Expert and I am here to help.
We ask that you post publicly so people with similar questions may benefit.

Was your question answered? Mark it as an accepted solution!solution Icon
Community Icon
I am not a Comcast employee.

Was your question answered?
Mark it as a solution!solution Icon

Frequent Visitor

Re: Phone Modem Battery Backup does not last very

If he did install a used battery, he did the same to my two neighbors who both had their phones go dead during the power outage.

Problem Solver

Re: Phone Modem Battery Backup does not last very

If you like we can send or have a tech come back out to replace the battery for you.




Community Icon
I am a Retired Official Comcast Employee, and I no longer actively support the forum.
Official Employees are from multiple teams within Comcast: Product, Support, Leadership.
We ask that you post publicly so people with similar questions may benefit from the conversation.
Was your question answered? Mark it as an accepted solution!solution Icon
Community Icon
I am an Retired Official Comcast Employee.
Official Employees are from multiple teams within Comcast.
We ask that you post publicly so people with similar questions may benefit.
Was your question answered? Mark it as an accepted solution!solution Icon
Community Icon
Retired Comcast Employee.
Please post so people with similar questions may benefit.
Was your question answered?
Mark it as a solution!solution Icon

Frequent Visitor

Re: Phone Modem Battery Backup does not last very

I now have an email conversation going with Comcast New England CDV, Case # 6652016, so I think that I will discontinue this thread.