Does it have battery back up?
903975
There isn't a plce to put a battery. when I unplug it the power goes off, but when I plug it in the date/time info is correct without resetting. I don't use it as an alarm clock though.
1058711
I does have a power cord I do not know if it has a back up battery.y husband just looked and didn't see one. Hope that helps you.
778066
Yes it has keys for backup in case your battery would fail. Believe it actually came with two keys.
1249488
No. It has no batteries to use for a backup. So if the power quits, so does the phone
850166
YES! It comes with a battery, but it did not last very long, I had to buy a new battery. It was very cheap.
968981
I'm pretty sure it doesn't, but I don't have it with me to be sure (a family member is using it). The battery life lasts a long time, though. I think I used it for about 6 months off and on and I didn't have to replace the battery :)
895020
Nope. It comes with a spare battery for when you have to replace it. The screws in the back are very tiny!
500726
It does not. I just confirmed it with the one I just got - unplugged it - pushed the power button - nothing. Nice display though. The rechargeable battery seemed like a weak feature anyway because it was only rated at ~1-hour of use.
897821
Mine does not. Instructions & diagram cutaway do not show a battery backup. Hope that helps.
939425
yes it does, it has a battery on the back it has about 4 hour life after you unplug it from the wall.
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.
223763
It does not. I just confirmed it with the one I just got - unplugged it - pushed the power button - nothing.Nice display though. The rechargeable battery seemed like a weak feature anyway because it was only rated at ~1-hour of use.
2036044
Mine did, but make sure it's new. I bought a used one and it did not have batteries. Regardless I could not pass the price up.
983942
Yes it does. Its a great machine with a crappy battery..its only downfall..
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.
1108284
No... it needs a 110 electrical outlet for the thermostat. I don't remember if there is a back up battery. I don't think there is. That is a negative for me as if we lose power, my water heater won't come on! We lose power a lot where I live. :-)
1282250
It does, but it uses very little energy. I have not changed batteries since purchase.