battery backup: Does this have a battery backup for power failures?
1504305
Yes. Owner's manual is available on Sony site here: &lt;http://www.sonystyle.com/wcsstore/SonyStyleStorefrontAssetStore/pdf/warranty/SEL-asset-159707.pdf&gt;
2283258
There is battery back-up for a specified number of hours. I use the prerecorded message that came with the device. So far when the power has gone out, all I have to do is reset the time and date.
2235242
If you're having so many regular power failures you should have backup power anyway since that kind of thing is really, really bad for your system. At some point you're absolutely going to lose data or your system will become unstable. - Trust me, I work in IT.
815099
Yes I have done that on many occasions. I have been very happy with my battery backup.
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.
952895
No battery backup is included in this package. Check the website to see if you can purchase one separately.
25517
It plugs in and uses the battery for backup in the event of a power failure.
936942
It has a battery backup in case the power goes out but not sure how long that will last for
1982040
This is not a battery, it is a battery backup for electronics. It will provide some amount of run time for your electronics after a power outage depending on how much you have plugged into the device and will automatically power down your devices if so enabled. It does start to BEEP when the power goes out and we are talking about minutes use time, not hours, long enough to save your work and shutdown your electronics gracefully.
1878757
the battery is for backup only..... in case electricity goes out. You still need to wire it.
1416612
I only use the AC adapter, but I know the battery is an alternate power source so it would make sense to me that the battery would serve as a backup in the event of a power outage if you also use the AC adapter.
1916960
I'm not sure, because we use it as a battery backup to our server. The times I've needed it, we've gotten at least 2-3 hours of backup for our server before our electricity came back on.
728995
I know there is a battery backup, but I have mine plugged into an outlet. I don't know how long the battery is supposed to last, but I wouldn't recommend it as your primary source of power.
643926
Yes, there is built in backup. I don't know how long it will last, but definitely long enough for the typical power outage. Mine has been unplugged for over a day now and the display is still working (unlike the timer itself, which is permanently off, and ready for recyling).
1507886
it does not have a battery backup, but "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." This is from the direction sheet. I do like the unit!
449236
The device does not need an external battery backup. It holds internal data in the event of an external power loss. It can be configured to send data to the software in either real time or when polled by the host computer. In the case where the data is being sent in real time, if the connection to the host computer is lost, the device continues to operate and store the data internally until a connection with the host computer can be re-established.
1045165
No there isn't a battery backup. The phone will still work during a power failure; you can dial out & receive calls, but the display will be blank & the other keys will not work until power is restored. Hope that helps!