roughly how long do the batteries last? Just trying to find out how often I would have to replace them, thanks
2088317
I use mine on a media center system so it doesn't get heavy usage but I replace batteries maybe every 4 ro 5 months if not longer.
2088318
I would buy a crap ton of batteries as they drain out if you leave the little on/off switch in the on position. Just remember to turn it off after each use and it should last as long as anything else.
87534
My experience is that they do not last "a year", but it's only 4 AAs. My rechargeable ones don't seem to last as long. If battery life is a concern, why not just plug it in?
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.
550171
I haven't replaced them yet, but I haven't used it much either. I did have problems getting it to work when I first put batteries in it.
316032
I cannot answer that fully. I have not left them on long enough for them to lose charge. I have the manual at home. So I would guestimate 15 hrs? Maybe more, maybe less. Best bet is the manual, what it says, but if you don'g actively correct them for a long period I would think it would hold charge a little longer
782122
I haven't had much luck with batteries lasting. the last longer if you take them out when not using, but that's a pain. its a great unit and I use it at work but on electric.
672908
Greetings. Theoretically speaking, the batteries can last 100-120 hours. But it will also be affected by the battery type and usage. Thanks for your question.
1581110
Hi, are you asking how long the batteries last before they need to be recharged, or how long the batteries last before they are no longer rechargeable?
1401834
I've been using these several months now. Have not changed the batteries out yet on any of them. I suspect I will need to do so in the near future. I think they get dimmer over time. They don't just stop working. So perhaps I could already make them brighter by putting in new batteries. But for my purposes they are working well (I have them mounted by my stairs and hall to the bath so you can walk in the dark and lights come on as you walk by; they only come in the dark and go out after about one minute of no motion, so there isn't a lot of 'wasted' light time).
565570
I have yet to replace mine. And I've had teh unit for a number of years now. I suppose the battery life will depend how heavily it is used. Mine is moderately used.
356854
Wel we don't run the lights all the time so I only know that I have only changed the batteries once so far. We run them when we have guests over. It appears that they last pretty long though.
154213
Can't give exact time but they last pretty good time. They use reg AAA batterys.
541703
I haven't changed batteries in mine yet, light to moderate use over several months. They have worked flawlessly so far.
1075856
Hard to say because I only turn them on when I'm taking them out for potty time at our lake house. I can say that one of them got stuck on and I had to remove the battery to turn it off. If you look around online you can find batteries for these pretty cheap. Overall they are not super high quality but do pretty well.
1236054
I do not know exactly, but I am going to say at least two years. They rarely need changed. Battery life is impressive.
820121
I've had them a month and have used them for hours at a time and they are still working. I didn't think they were gonna last this long to be honest. They take watch batteries in case you were wondering.
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.