Specifications:
Details:

How to Wake Up On Time:
Do you have trouble waking up on time in the mornings despite desperate attempts to do so? Are you afraid you might lose your job or fail a class because you can't get up on time? While most people can simply set an alarm clock and get up at the desired time, almost everybody has trouble rousing themselves at some point, and many people frequently sleep through their alarms. If you're chronically late for work, or if you just need to make sure you don't miss your flight early tomorrow morning, read on
Tips:
Package Included:
No, it won't, as you say, it is for back up to keep the time current but it doesn't keep the clock functional. Get a battery operated travel alarm clock.
By 5-10 minutes. In genaral clock is 5 minutes. but some clocks don't turn off unless you press snooze or off.
Start setting an alarm clock the same time every day and eventually, your body clock will wake you up before your alarm goes off.