Is there battery back-up if there is a power outage and if not will the time need to be re-set when the power goes back on?
207487
Doesn't have the battery but somehow it keeps memory for short, 30 min power los. I have checked this feature.
354034
Yes. Word of warning...if the power goes out, you will need to reset the timer. Also, this product lasted about one year and died on me. Did not replace with another. Went to Lowes and bought one that is digital and has battery backup ($25) seems to work great, but time will tell
1338813
That will work. What you need is a device to give you a few minutes delay after power comes back on after a blackout. This works fine for me.
1825910
Instructions state "Power outage: The screen is blank. Only the time must be set if the outage lasts more than 4 hours; all other settings and programs are permanently saved." Hope this helps answer your question.
169322
It is not battery operated. There is a small battery that keeps the time correct in case of power outage but you need to get 120V power to the unit by plugging in to a wall outlet or running wires to it.
827232
yes power outage wipes all settings and you annoyingly have to reset it. I have mine light on, timer off so the off time gets messed up. Just reset mine today when I noticed it was staying on all night
2095025
Nop no battery back up. It just plug to the power outlet. Unless you connect it to a battery back up itself.
1828920
NO. I have it plugged into my computer battery back up so I can use it when the power goes out.
341340
Unfortunately, this model does not have a battery back-up. So if you turn it off it will reset to the default mode. If you think a bright light will kill the mood imagine a bright light along with the loud announcement of: "You Are Trespassing!!!!" Scared me to death the first time our power failed. There are other similar models that do have a battery backup so that it will not reset/loose any video when the power is cut. Good luck!
1704630
The battery is a backup in case of power interruption. From a practical viewpoint you need a low voltage power supply.
1521352
Yes, but it has an option for batteries. I suppose it is in case of power outage.
936942
It has a battery backup in case the power goes out but not sure how long that will last for
1825913
Below is what the tech specs say about loss of power. There is no replaceable battery that I see. I suspect it the local time is saved via a capacitor type back up and the other settings are stored permananetly any time you set them. I have only reset mine once and that was because I wanted the light to come on later because of holiday deco's on the porch. Power outage: The screen is blank. Only the time must be set if the outage lasts more than 4 hours; all other settings and programs are permanently saved.
627052
I am unsure if there is a battery back up, I will check. We run ours from an AC adapter.
744462
Yes, This is a simple 24 hour clock timer. I wouldn't bother for short power interruptions but for long outages you should check time every once and awhile. You also need to adjust for daylight savings time twice a year.
480077
Its required to be plugged in to work. There is also no battery backup so when the power goes out or it is unplugged all the settings are lost.
1484538
The battery keeps the time continuously. When the power fails, it shows the time, but of course, the switch doesn't work. When power returns, the schedule resumes without having to reprogram the switch.