does this item have a back up battery should electricity goes?
1436486
no it does not have a back up battery, however it has a key to disengage de motor to move the door manualy
1706714
Yes, it does require electricity so it is totally worthless if your power goes out.
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.
1177889
Gee I bought it awhile ago now and it plugs into an outlet, but I checked the description on Amazon and it doesn't say there's a backup battery. There is a little red light though, so if it were to turn off, you'd know it is not working.
394552
No battery that I know of, but it does retain settings in the event of a power outage.
1145316
i need mainly for radio for back up when we lose electricity. what is life of battery backup
1182818
Good question. The answer is no, there is not a battery back up on the receiver.
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
1982746
Yes, it plugs into electric and has a battery back up, our power went out the other day for about an hour and the clock was right on time.
1934570
The one that I bought came with a battery backup. When the power goes out the battery keeps the exit light on and the two side lamps go on.
1023953
No it does not. Ac power plug only and batteries for backup in cast of a power failure. I believe the battery backup is good for about 8 hours. We are very please with this product. As I said before, it is a little tough to get the timer set right ( of course I am pretty dumb when it comes to these things ) but once it is working, you will almost forget about it.
553825
It has an a/c plug or battery "backup". I'm not sure how long a battery would last since ours is always plugged in.
1964713
No. It is battery powered. Batteries last about 6 months. It is a great item.
2005030
It has a battery inside that will keep the memory intact if the power goes out. It doesn't have an operational battery backup, meaning employees cannot clock in and out when the power is out. We have ours hooked up to an APC UPS battery unit. Honestly, even if Icon offered a battery, it'd probably be just as much (or more) than an APC.
69116
I have it plugged into a standard wall outlet and a computer battery back up connected to it. Works great.
796051
Yes. It has a battery and I have used it both ways which is the reason I bought it. If I need to use it without electricity I can just as well.
779763
I believe this unit does have a built in battery back up to maintain its' setting. The lights and optional audio warning do not function without power, but the setting will be retained until the back up battery is drained. Also, the video recordings on the SIM card are not lost with a power loss. Hope this answers the question.