Real world battery life with 4820TG-3195?

What would be the expected real world battery life with web, intel hd graphics, wifi, office running?

 

I picked up the i3 version, but I'd be surprised if the similarly clocked cpus really differ much in battery drain - especially in use like you specify where the cpu won't often run full speed anyway. My i3 is typically running at ~1.2ghz with light use.

For the i3, with wifi & bt on, 40% brightness (still quite bright, the display is impressive) mild app & web use Windows has been showing me estimates that range between about 5 hours and 8.5 hours for a full charge. Practically, I haven't had it plugged in since saturday morning, and i've had it on for 5-6 hours total and right now it's showing 24% remaining (2hr1min estimate). That even included 10-15 minutes of the gpu on with a dx11 tech demo that was really exercising the battery.

Hope that's helpful.

 

thanks. also does that battery button thing really work? also any excess heat issues?

 

I'm not sure about the battery button - I've just left the button on, so those numbers are all with it enabled. There is a popup about it turning off the dvd which I believe is related to the button, other than that I'm not sure what it's doing. I picked up the laptop on friday so I haven't had a lot of time with it yet.

For heating, under typical usage it's been running quite cool. ~30's idle/low use, +10C if the gpu is turned on, ~50-60s during typical gaming. (all cpu measurements). The exhaust doesn't seem overly hot, nor anywhere on the machine.

Stressing it is a different story though - 80c with prime95 and the gpu on. Add the heaven dx11 benchmark running along with prime95 and It got to 86c max - when it hit that level it would throttle the cpu to 900mhz and drop down to the 70s immediately, unthrottle and then build back up and do it all again. I have mixed feelings about that - at least it isn't turning off like the one in the video did, and I can't get anywhere close to it with real world loads so far. But the fact that they presumably felt they needed to update the bios to throttle 4-5c below TDJ does pretty much validate that the cooling issues aren't just a fluke or poor heatsink transfer.

 

I was thinking about returning my toshiba m645 and getting the acer 4820tg 3195. What i like is that it is slimmer and lighter than my m645 but gets similiar battery life with a smaller battery. I suspect this is due to the 5400 rpm drive vs 7200 drive in the m645.

So with normal usage heat is not a problem? from what i have seen heat seems to be the biggest complaint against the timelinex.

How is the KB flex Btw?