If unit does not have on and off, it just wears out the battery?
766810
I'm not certain I understand the question. You set the timer for the minutes you need and when it reaches that point it will ring and turn itself off. You are always able to stop the timer by a click the buttons should you wish to for any reason.
766811
Use ours for timer for cooking and canning. Use 4-5 times a week and still running after two years. Bought second one because first works so well and we can use a second timer.
1198660
Probably a bad unit. Mine only lasted a little over a year. Just outside the warranty.
947982
According to the documentation, the unit will remain OFF after a power failure. I believe this is a safety precaution.
621290
it turns itself off after no use for some time..doesn't ever need to be turned off
1548646
If you turn it off when your not using it you will get a lot of life out of the battery.
1157482
Yes, it seems to go dormant when not in use. Takes one AA battery. Minimal power.
1747262
I have had a unit for quite a few years. I thought my battery had died and replacements were expensive. Started looking at just getting a new unit. Then I put the battery back in and it has worked fine for what has now been a couple more years. Don't know what happened, might have been a connection problem????
1328199
This unit MUST be plugged in to operate. Unfortunately it does NOT contain a standalone battery.
810493
leave the batteries out for a couple hours.. that is what i did to reset unit..
322202
The unit has a battery, as does the speed and cadence sensors and heart rate strap. They'll need to be replaced yearly, which is no big deal. I'd actually rather that than worrying if it needs recharging all the time. And, the unit will let you know when the battery is getting low. After 6 months, mine is still going strong on original battery.
326615
I don't know. That has not happened to us. Does your outer unit need new batteries?
936534
Yes. The battery is not rechargeable, so it does need to be replaced periodically.
1630179
The unit must be connected to an external battery. It does not have internal power battery.
1710515
There is a tiny on/off switch. If you forget to switch it off, when you're finished with it, the battery will be dead by morning :(
627313
It depends on usage and battery type. And remember to turn it on and off as needed.
1134696
The does turn itself off after a minute or two. The unit does not draw any power it has an internal battery.
1096506
The unit should shut off when the batteries reach 10.5 volts. If it's shutting off sooner than that, you may have a defective unit.