How long do the batteries last if you use it 24 / 7?
1992958
Have not had to change a battery yet, of the first three I bought. I have seven now. If it is really windy, the one on back porch screen may go off, but, they reset. I love these alarms.
1447689
It depends on how often you use it. My husband uses it more than twice a day. He has to change the batteries twice a month. I use it twice a day so my batteries last much longer.
1448623
I have been using mine since for over 4 months and the batteries are still working. I would characterize my usage as minimal to very minimal. I do not use it as my main remote.
1233815
I do not use the light continuously, but I have used it intermittently for an entire night of hunting, and I have not changed the battery yet.
309259
Mine have been in since I bought it, so over a month so far. They say two months, longer if you turn off when not in use. Mine has been on 24/7.
1191223
I've had mine since May 20 and only use at evening and use the 30 minute auto off. The batteries are still working great.
690623
I've used batterities and when I run it all night (12 hrs) it normally lasts 5-6 days
1944590
I'm not sure about continuous battery use without plugging it in, but I've only had to replace mine once so far. It definitely lasts a long time!
2062646
Pretty long. Months I would say. We got ours about 10 months ago and I think I have only replaced the batteries 2 or 3 times. Pretty good considering it is used almost every night.
946678
I run mine 24/7. I just turn it off to clean it, then turn it back on again.
587697
The battery lasts one heck of a long time. That probably doesn't answer your question. I purchased two of the batteries. I keep them both fully charged and as of yet, have yet to run out of one battery during the day. I swap batteries at night, and recharge the "used" one. Hope that helps someone.
770666
I have had mine for 3 months and have used it once or twice a day since then. I just changed the batteries in it today. So depending on you use I would say 2 to 3 months.
2038747
It doesn't have an automatic shut off so if you turn it on it'll just go and go until the battery goes dead. I'm not sure how many hours of battery time it's good for but I've left mine on all night long on several occasions and it's still going strong!
574402
I've had them for more than 1-1/2 years without replacing the batteries but they're not always on. We like it a lot.
9090
I have had it for a few months. Use it a few hours a week. Haven't had to replace the batteries yet.
457403
I only use mine for about 20 minutes every morning on way home from work, and charge it once a week. So continuously on I do not know, but it is a great light.
1090791
Not sure if it lasts 24 hours, since I use it for an hour at a time, but I usually only have to charge it every other week or so. It does gradually dim, but in my experience it stays bright for most of the two weeks, then gradually dims just at the very end until it dies. Incredibly reliable light.