How long do the batteries last?
1107786
They have a long life. I have this thermometer for about a year and I still have the original batteries.
1423235
I was at a festival and they lasted for at least 6 hours. You can bring batteries if you're concerned. They didn't really stay in my hair though. I ended up clipping them to my fanny pack.
1782943
They last about a year. You can buy upgrades for it ( more run time). Batteries aren't covered. They are expected to be replaced.
1242085
I have used mine 8-9 times each time was about 30-45 minutes. I have not replaced the batteries yet, but I do keep an extra set in my truck. I use lithium, due to the cold weather.
2091437
I have only had mine for a few months and never turn it off. My husband has had one for over 2 years, never turns it off, and has never needed to replace the batteries. Supposedly they have a battery life of up to 36 months. Hope this helps.
1233289
I never run my batteries completely low so I do not know what the time would be from that point. I put about 3-5 hours of listening on them and the they are fully charged in approximately two hours.
876627
These are not designed for continuous lighting, but for intermittent and for a couple hours at a time. If left on continuously, the batteries will last around 25 to 30 hours. These had been considered for a commercial display case but were turned down due to having to change the batteries every 3 days.
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.
1853326
Not long at all. I had to stop using mine. When you put batteries in you get about 8-9 good hours, then light begins to dim. It is worthless!!
1684911
I am not sure about a whole 16 hours; I haven't tried to make them run that long. I've seen them go for as long as 8 hours and they weren't fading, we just turned them off after that. The battery doesn't look replaceable to me; it's a closed clear plastic case. The strands pull out and the plastic barrette case won't put up with a lot of abuse.
1069730
Most batteries last 4-5 days depending on how many hours you have them on each day.
384229
I have had mine for 10 months now and my husband tested the batteries a couple of weeks ago. They still tested pretty strong so my guess would be something in excess of 18 months.
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.
503241
They are water powered, no batteries so I guess they last as long as the LEDs. Probably a really long time given most LEDs last over 40,000hrs.
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.
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.
358967
I'm still on my first set of batteries I put in it (2 AAs) and I'm amazed they've lasted this long. I've been using it off-and-on both day and night. The other night I fell asleep with it on and expected the batteries to be dead in the morning. They're still going! I turn the radio off when commercials come on so I'm sure that helps, but still, I've been pleased with battery life for this radio.