how long do batteries last?
1260994
I had read somewhere online that people had the batteries last 30days. I found that after 48hrs the motion detection started to be significantly less sensitive until I put fresh ones in again.
1260995
The battery life for my unit in cold and hot temps have been almost 4 months on a very sensitive setting which means more activation. It doubles as a watering device for my garden. Cars that drive by my front garden at night often set it off because of the wide range I've selected.
1260996
I suspect that it depends on how many times an intruder is detected. I had my unit in service with the same batteries for more than four months. It might have lasted longer, but I removed it because I felt that there was no more need for it to be guarding the area (no raccoon poop in two months) and I had accidentally discharged it (on me) a few times. I was very satisfied with its operation.
456550
I have four of these, all installed since 9/2013. One of the batteries died after about 6 months, which kinda worried me, but the other three are still on the original batteries and still sound loudly when tested. So, 6 months to at least 17 months. These are nice little units, worth a few extra bucks for the small form factor.
1446625
I am going to say probably 4-5 hours on average if they get a good charge during the day. I now need to replace the battery in one of them, but I have had them for about 4 months. The others I have are still going strong.
555189
Batteries will last 20 to 40 hours depending on factors such as quality of batteries and if headphones are being used to save power.
1202669
Tough to answer. Length of time in use and volume will impact batteries. I often use it 4 hours a day and they last about two weeks.
1928349
I am getting about 10-12 minutes per battery, but I charge them and then they sit for a week. You may get more time if you charge the batteries 12-24 hours before using them. Also keep them in the house if you live in a hot climate. Storage temperature may affect battery life. B&D; also claims the batteries reach full potential after 5-6 charges, but there is no empirical evidence of that.
1302117
I don't know the answer, but a search on the topic of: "how long do batteries last in storage" will keep you busy a while. Seems that most batteries will store for quite some time (NiMH being a bit of an exception) when stored in a cool dry place.
74799
It depends on your settings. If you have motion activated and long record times it will be shorter. I get 12-18 months on a set. Also I buy the batteries in bulk and they are surprisingly cheap. Never buy them retail. They have very long storage life.
1437034
I do not have an exact time that the batteries last. I can tell you that I've used it numerous times and haven't really had any issues with battery life.
764735
I don't have exact time but I have used mine several hours now and still using original batteries.
767289
Can't just answer that without a few considerations. Our experience was easily a couple hours, depends on how fast you run it and how it's used. As the batteries get older, that time will shrink a bit, as all batteries do normally. We were thinking and I think it would go longer for sure. Hope that helped.
1841746
The first set of Duracell batteries in one light on our front porch (activated a few times a night on average) lasted for four years. I had to replace them earlier this year so i don't know how long these second set will last.
1180025
I haven't timed them. I use it for about 10 or 15 minutes per day, and I have to change the batteries on average once a month.
1898606
The batteries will last approximately two years when in standby mode. If the alarm is sounding continuously, the batteries will last approximately five hours. With normal use the alarm will not constantly be in standby mode or sounding continuously. Therefore, the user can expect the batteries to last anywhere from 3-12 months depending on how often the alarm is activated.
1519272
depends on the batteries you use... I guess. but mine last for about half a year
2155490
Usually the battery last between 4 to 6 hours. Just make sure you don't drain the battery. When you see that the battery is almost gone, charge it to prolong the battery life.
1314834
AA batteries. Depending how many times the alarm goes off, they should last approximately 6 months.