does the system have a battery backup in case of a power failure?
644491
Yes. The manual also states that it should last 72 hours without being plugged in.
1521352
Yes, but it has an option for batteries. I suppose it is in case of power outage.
666812
The unit's control panel has no battery back-up system to "remember" what state of operation it was in prior to a loss of power. The heater defaults to the OFF when power is lost, then restored.
848436
Not that I know of. You can buy a power failure light that only comes on in the event of a power failure. I like these because they are a night light that you don't have to touch, but also a flashlight in case of power failure.
1426897
Yes. It comes with a power adapter and it is required for normal operation. The battery is for temporary backup in case of a power failure, and would not last long.
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.
1096027
Yes, mine has been running for a year or two now with several power outages; restarts automatically.
1805497
It's a no-touch system. Plug it in, it will go through a self test attach the equipment you wish to supply and forget it, it will take care of itself. I've had mine for a year or so and it has never failed to do it's job when the power failed. I use it to power both my cable modem and router, and no problems occurred during power failure.
1985511
The battery is there for backup in case of a power failure. We selected this model specifically because it will not need frequent battery replacement.
1282879
Sorry, but no idea really, without seeing the unit and checking a few things. But usually the only thing that will keep a computer from starting at all, assuming power is available, is either a failed motherboard, bios, or hard drive.
193440
It depends upon the number of devices that your unit is going to provide power to via its internal battery. Without that knowledge it is impossible to provide you with an answer. My unit states that it will provide approximately 30 minutes of battery backup power. During a power outage it would be supplying power via its internal battery to a notebook, a docking station, a monitor, a phone, a modem and router. Hope that helps.
2018690
It does have a battery back-up so if the power goes off, it keeps your programming.
480559
The battery is for back-up reserve only, in case of power failure. The system operates with reduced function on battery power only, and is not recommended by the manufacturer.
723329
The power supply is an option. It uses a 9 volt battery (not supplied - no surprise there). When the power supply is used, the battery functions as a back-up.
394552
No battery that I know of, but it does retain settings in the event of a power outage.
1490715
No, and this is horribly annoying. Even a brief outage resets the clocks, alarms and everything - you have to completely reprogram everything. If you have power issues at all I would advise against it.
492900
No. After use I unplug from electricity. I use this only once a moth to backup my computers.