how long does the battery work if I use the glowlight?
742003
on the weekends, I read almost constantly and I always use the glow light ( I find it reduces the glare from the lamps in my house). It usually lasts for 30 hours or so.
742004
I used the glow light on an eight hour night flight to Europe and I still had battery life when I arrived. Unfortunately, this was the first time I really noticed the battery life.
847038
I don't know the exact battery life but all of the reviews I have read that compare it to other headlamps have said that the battery life is great. Of course, this depends on how you use it. If it is on the highest setting the whole time it will not last as long as when it is dimmed. I have taken mine on several camping trips and have yet needed to replace the batteries. There is a feature that locks the headlamp so it won't accidently turn on in your pack which helps save battery as well.
445605
I am not sure; I have been using the same battery for several months (at least 6 months). I turn the light on usually many times during the day.
234752
i am not sure..i would guess at least 3 years... As for how long the battery would hold a charge: Depnds on how you use it...I had the wifi on and was playing a 3D game for 2 hours with full display brightness and after 2 hours i had 40% battery left...i got tired of playing so I am not sure how much longer it would last.....you could set the display brightness to 50% if you are just browsing the internet and it may last 3 hours with wifi on.....
360763
I have used it only for a few hours and so far have had no battery issues. The LED bulbs draw very little current and the batteries should last for quite some time.
1217935
We got about 12 hours from rechargeable batteries. You will get more run time from regular batteries. It is a perfect light for the dinning table. We have two for larger groups at the table.
631922
Mine can last all night long and into dawn if I have them only on motion detector mode. If it is on continuously and is FULLY CHARGED I have had the light stay on for about 6 hours.
730740
It can be used within 6 hours if the backlight is on, and around 10 days if the backlight is off. It can stay 15 days in the sleep mode. All of the above are in full charge mode.
1585344
I did a test on mine which is about 18 months old. On a full charge, 3 lights illuminated on the side, it lasted 27.5 hours. It was still illuminated but about 1/2 the brightness of a full charge. You can easily get 24 hours of useful light out of this.
410706
it's different time and based at how long u charge them at station. at full charge it,s near 10-20 min. but manufacturer not installed uvf leds for fast charge, and u need near 30min to do it. wanna fast full glow, use UVF lamp
863873
If this is the Sima IR light the battery life is about 45min to 60min. You can plug it in and run it off the wall as long as you want, but the battery life is a little weak. It is a really bright light and worth the money.
428002
If they are given a good half hour charge before the lights are turned out, they glow for very long time. Upwards of an hour and a half to two hours.
1037550
Not very long, We've gone through 2 of these things thinking maybe the battery was bad in one, but to no avail, both seem equally bad. There seems to be no indication that the battery is fully charged, the charging light stays red from what I can tell, I've charged it for 12+ hrs, take it off and almost immediately the battery percentage drops to 2 bars. All in all the battery lasts about 4 hrs in a silent house. If your child cry's a lot I'd bet you get less.
1579076
The battery life is rated at 43 hours on high power, and up to 150 hours with the use of the dimming feature to balance amount of light with battery life. The key feature that extends the battery life of our headlamp beyond that of competitors is you are able to set the exact light that you need. Often (such as reading in bed or in the tent), you simply don't need full power. Our efficient LED bulbs maximize battery life by using less battery power if you're using less light. Note: As with all headlamps, you will see some dimming as batteries become weak and this is an indication to replace or even better recharge. Finally, if you are storing the headlamp in a cold place, store the batteries separately as leaving batteries in any headlamp during cold storage will drain the batteries. Thanks for your question and we hope you decide to become a valued Northbound Headlamp customer!
1866348
While I have not specifically timed battery life under high or low settings, my observations are that on the high setting, the light lasts on the order of several hours but the brightness decreases fairly early on. The light still provides useable light when the brightness wanes but do not expect the light to be "300 lumens" for more than an hour or two. I do not use the light on the low setting.
208552
I use it at full brightness and the battery last around 4hrs when it is fully charged.
250176
I don't know exactly how long the battery lasts (it said up to four hours in the book) but I enjoy movies on it in the evening and I never have problems with the battery running down. I have worked from it in other areas (unplugged) and it certainly keeps me on long enough.