What is the expected battery life?
847036
40 hours on highest (brightest) setting is what I recall reading in a very thorough review of the top 10 headlamps on the market.
847037
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.
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.
631651
I've only had it for 5 weeks, so I don't know the battery life yet. It is working quite well.
195761
I'm not totally certain about the battery life. I left mine on using it here and there through the day and it well into the evening before I had to plug it in again. I also know that I left in sleep mode for over a week and it still had about 70% battery left it. It impressed me how long it would hold its battery power
1187256
Maybe 2 hours on battery saving mode if your lucky. If battery life is a concern I'd look elsewhere. This computer is mostly a desktop replacement.
1604414
ive had this computer for more than 2 months now. it's a really good computer and the battery life depends on how much your using it. If your using it for videos and tv i'd say around 3 hours. if it's solely for research it gives me a good 4-5 hours before i have to plug it in
1247605
Sorry took so long to answer...battery life is maybe three days- I have to charge up every other day to make sure it doesn't die on me.
1540908
About 2 hours with activity, stand by is several hours. But after a few weeks of use, battery life goes under 1 hour. I plugged it in for 3 hours, and only 1/3 of it was charged. Really awful battery life.
273752
Fully charged it now says 4 hours and 5 minutes. Actual time depends on what I am using the computer for. Overall, I am pleased with the battery life.
143585
I have not run it all the way down, but I would expect 6-8 hours of use....several weeks in standby.
201895
I just used mine for 6 straight hours, and 2 hours the day before, still going strong. I would estimate 10 hours full charge to dead.
705473
Battery life is pretty sufficient... Usually three hours of constant use before requiring charging.
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.
1974950
I own one and the battery life is only about 1 month. I will leave it to you to speculate.
1410010
About3 to 4 hours. Battery isn't a strong point here. I didn't buy it to use the battery however, so I'm pleased with it. Really a grade A laptop. I'm sure this varies based on task and performance settings.
706000
I have not tested it until it goes out of battery, I assume it would be 3 to 4 hours
1390155
I guess it depends on what you classify as "extreme" use. If you have wifi on, GPS on, are concurrently downloading videos while surfing the web, I'd say 9 hours is probably about right. Try it with the OEM battery and see what your battery life is with the same conditions. My guess it is 4 or 5 hours.
690298
Battery life is fair. It depends on usage. 3-4 hours can be used when it fuly charged.