How long do the batteries last?
147977
It will obviously vary depending upon how often the device is used. However, I can say my mother did use it quite a bit at night and the batteries lasted at least 2 months before the units began to fail. I though the failure was due to the batteries but I replaced the batteries and found that was not the issue. The issue is the push buttons / call buttons begin to fail. They started requiring to pushed in just the right spot to go off or didn't work at all. I would not say they failed due to wear as my mother is 80 years old and doesn't have a great deal of strength in her hands but could push the button. Unfortunately, when they fail the completely fail at the purpose they are to serve. I recently decided to try a wireless door bell instead tying the door bell button onto a lanyard she wears around her next. That button seems much more durable as it is meant to survive outdoor weather. I won't buy these again unless there is a report of a substantial improvement into the durability of the call buttons. As I mentioned I would pay double if these would work reliably but two in a row failed and each comes with 2 call buttons so that is 4 call buttons that eventually became defective in less than 2 months.
1830651
I can't tell you how many hours but I've had mine since May of last year and have only changed the batteries once. I have them on every night from about 7 to 12.
1918560
The rechargeable batteries last about 8 hours of continuous play. They are great for travel. Regular AA batteries might last 3-4 hrs of continuous play.
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.
9090
I have had it for a few months. Use it a few hours a week. Haven't had to replace the batteries yet.
305369
Depends on what kind of batteries you are using. I have two on my light. They seem to last about 2.5 to 3 hours before I need to change them out.
2223719
About 3 hrs I think , good idea to have 2 batteries , it's a great little machine, I love mine!
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.
500214
I'm not sure as I've never installed batteries. I've read they usually last two months or so.
2278042
The batteries last easily around 25 hours with quality lithium batteries, while I apologize for any misleading information.
1896790
Not long, had to buy an extra 3 pack of batteries to keep on hand. Never leave home without an extra one.
1622218
Really couldn't say - I use these infrequently. I will use them nightly for a week or two, then turn them off. Only use them on dark winter evenings. Still using the batteries from last year, therefore. So - I will hazard a guess that they last a long time, maybe several months if not used daily.
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.
1390286
They last pretty long. Make sure you use quality batteries, like Duracell or Energizer. Don't forget to turn them off when not in use. I don't want to attempt to guesstimate how many hours, but we really don't have to change them often. If they start making funny noises, time to change batteries.
1340416
About a good 6 hours maybe 8...I bought them as a Christmas gift for my two kids and to be honest I don't allow them on longer than an hour but my husband used it for 6 hours straight. Pretty good product I honestly can't complain.
251099
I personally do not knwo as I used them for a teaching aid in a project but depending on what batteries you use they can last anywhere from 24-48 hours continuous (LEDs on). The consumption on it in standby mode is very little (~70 micro Ah) so depending on if it is placed in a high volume traffic area or not will also determine how fast the batteries deplete. The consumption when it is on and lite is ~70 mAh.
576784
A very long time. I would say somewhere around 30 hours. The battery lasts forever though.