how long do batteries last
1471443
some batteries have not worked.I've only used while hunting for a few hrs. at a time and they have lasted a few trips.
1471444
I don't know for sure. I do know if you don't open the battery compartment when not in use, they wear quickly. Ric's response gives you the use time for a regular user. I use mine for hunting, shooting, leaf blowing, and power washing, or when I am in the woods running or outdoors and want to have super keen hearing.
129428
Two double A batteries, and they last about 30 hours. I walk an hour a day, and change the batteries once a month. Sorry it took me so long to get back to you.
987696
We usually don't use ours for more than 90 minutes of continuous use. They could probably hit 2 1/2 hours with a decent battery, but it might be a stretch. I don't know if you need them to run continuously for the whole time, but we try to conserve power by turning them off when not actively in use. We're running them on Energizer rechargables.
1766500
The rechargeable batteries in mine last about 8 hours on a full charge with the radio playing. When I use alkaline batteries I get about 20 hours of play time.
1125691
I had fantastic luck with regular double A batteries as well. Generally, they would last for maybe about 8 hours of life, and I always got accurate battery life readouts, and was always able to replace them when they got low without any issues.
1699240
I put new batteries in last year after I first installed the lights. I am still using the same batteries. Usually I leave mine on for about 2 hours at a time. I've probably used mine 6-7 times so far with the same batteries.
250750
Guess I cant really answer that question. I put 6 D rechargables in it and have several fishing trips in with and it still has'nt used up the batteries, so its a long time. I would say I have over 24 hours of use on them and still going strong.
725784
Hi there....I can't say exactly how long the batteries last, but I do know that we went to Haiti and ran two of them ALL night while we slept for one week, and never changed the batteries. Hope that helps.
1838279
I just change the batteries and don't bother with the other stuff. batteries last anywhere from 2 weeks to 3+ weeks depending on how much I use it.
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.
1555202
Approximately 8 and sometimes 10 hours if I leave them on and if I buy really good batteries. They are easy to turn off and on to save battery life and easy to change the batteries
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.
434009
Less than 4 hours for mine. The battery really does last a long time. I've had mine for several months and use them for up to 4 hours or more at a time, a couple of days a week. I have only had to charge them a couple of times so far. I am impressed with the battery in these.
854051
I kept them on 24/7 as part as a door decoration, and the batteries lasted about a week. They were cheaper batteries though. But I would imagine you might need to replace them once or twice to last all season. Beautiful lights though!!
1912640
I don't know how long the batteries are supposed to last, but this seems unusual for them to die weekly. I ran mine last year for approximately 4 hours per week and unit battery still worked this year.
2223719
About 3 hrs I think , good idea to have 2 batteries , it's a great little machine, I love mine!
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.