does this have battery back up
915697
No, there is no battery back up. Even still, it's a great unit, and we've had no problems with it.
1922383
No it does not. It must be turned on. But, the good thing is that battery last for more than 24 hours. and get charged in less than 20 mins
1148527
I just checked it and there is a section on the bottom that says battery back up. I haven't done it.
548852
No battery back-up. If you lose power you have to release the emergency release and open the door by hand.
1182818
Good question. The answer is no, there is not a battery back up on the receiver.
175575
Not sure it does but the battery will not stay charged when using it to just talk to someone, 20 minutes at most
2222574
It is electric yes and does have a battery backup ....Included a small remote ... It's about a year old now and held up to my 8 year old using it everyday ...We like it
468960
The unit has a compartment for two button type batteries (supplied with the unit) that back up the memory if the power goes out. So the answer is: yes.
2242135
Yes it has a battery back-up for both units. I do not know about dual voltage. In response to others, i do not have a problem with volume and the unit has incredible range.
1435277
Hello , and yes, it does , but you will need to order an additional battery as well , they do not last for more than 10-15 minutes , my wife loves having two on hand , hope this helpsRon
1408470
Yes it does. And like I mentioned---best to use it till the battery is used up then recharge it right away and store it charged. It will stay charged for quite a while. I found that it gets the full potential out of the battery doing it that way. hope that helps!
971235
I think it has battery backup. I don't remember, as the unit is with my mom at her assisted living facility.
401587
Yes, once the unit has been plugged in and charged, it has a back-up battery that will preserve time and settings during intermittent power outages.
394552
No battery that I know of, but it does retain settings in the event of a power outage.
627052
I am unsure if there is a battery back up, I will check. We run ours from an AC adapter.
1689723
No battery backup. Instructions say battery not needed and settings are saved in memory. Unit works great for me. I love that it's really easy to program and use
684193
Yes, it does have a battery backup. It works great, as i've turned the circuit off several times during our remodel and no power loss to the timer. All the times and programs remain correct.