What is the real-world battery life of these units?
456549
Not sure I can be of real help as I have only had the alarms installed for about 3 months. They do have a good, piercing sound.
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.
456551
I installed my unit in November 2013. My "long-life" battery started chirping October 4, 2014. That is 11 months. About the same time span that the old 9 volt batteries. Disappointing....
1088009
William, thanks for taking the time to respond. I will also let everyone know what kind of battery life we observe. Best of luck to you.ww
1828738
we use them at one of our retail stores, the guys carry them in their pockets all day I would guess they dont talk over a hour a day on them but we have never had one go dead yet. I purchased extra phones so when they come to work they get a fresh one. We are open 11 hours a day but the longest shift we have is 8 hours, they do put them back on their chargers when they go to lunch.I would buy them again.Hope that helps
227134
I use them alot , most of the day in fact, and I can get around 5 hours (talking on Skype and listening to Youtube videos) of use out of them before they need recharged. They take about a hour to recharge ( I just use them with the charging cord plugged in)
2056683
I can't give you exact hours but I can tell you that my sons use their players at campouts for many hours and I have never seen them go off. I have never used mine for an extended time on battery.
1236054
I do not know exactly, but I am going to say at least two years. They rarely need changed. Battery life is impressive.
1703768
We received our units about two months ago, and we have used them quite a bit. [They really come in handy out in the country.] So far, the lights show no sign of dimming and we are still using the batteries that came with them. So far, the battery life seems very good.
1703766
Battery life is good. I have not done endurance testing but they seem to be fine.
1884484
I have em' going every night for at least 3 or 4 hours, its been 2 months and I haven't changed em' yet. REALLY, REALLY Impressed with battery life they're still going strong - I'm really impresed with battery life
2033659
i have used mine for about two and a half days before I had to charge them. but it really depends on how much you use them in one sitting
1534749
Mine lasts about 7~8 hours for regular use when I use the Quite Office Setting.I know it's still better than any other laptops as to battery life.
2264177
My wife and I ride a lot 150 miles at a time.We use the intercom constantly and they stay charged 8 hrs I know.We put them on charge when we get in to make sure they are charged the next day.The life of the batterys I have no idea,we have run these for going on 3 seasons. Hope this is helpful
53376
I've had mine about 4 years and am still using them. they seem to not hold charges as long. And I am thinking about replacing them. I use mine a lot as I have 3 appliances, 2 saws and a weed trimmer. I keep them plugged in all week and use them pretty heavy most weekends.
583430
I've had them HOLD there charge for 4 months of non use! up to 2 months of off and on use and for at the irish fest shooting and video taping 2 - 4 hours depending on how hard I'm going They do hold up well I cannot complain! Those batteries that only cost a few dollares and ya I've tried them! NO.....don't hold the charge for long and don't last that long either. I've had the cheapies go in 2 - 3 years you know freshly charged and Dead in 30 min.
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.
1364565
I charged them initially for about three hours. One of the batteries seems to take a charge overnight, but the other is pretty bad. I love the unit when it is working, but all too often, the battery goes dead without any warning. I've tried to get replacement batteries (thinking I may have a bad one), but can't find them anywhere. This is totally unacceptable! If anyone knows where to get replacements, please let me know.
385969
The battery life is about 12 hours as it says on the package yet i know personally that they have lasted 10, so that is the maximum that i have tried it.