Computer battery life - Chicagoland Sportbikes
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post #1 of 10 (permalink) Old 10-27-2011, 08:03 AM Thread Starter
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Computer battery life

So I got a new laptop for my birthday back in may. It's an HP Pavillion g series.
Well when I took it out of the box, I turned it on to let the battery die. Then I charged it until it was full, used it until it died and charged it again. Well I noticed that while surfing the internet the battery only lasts about an hour and a half to two hours. I went online and looked it up and saw people complaining that it had poor battery life and that it only lasted around 4 hours.
So I called HP and told them this and they had me do some battery test on the computer itself and it said it was fine. They told me to do the same cycle I did when I first got it. They said if that doesn't help I have to send the whole computer out for a min of 3 weeks to get looked at.
Now my question is.... Is there something that I don't need running that will save the battery life. Or is something draining it from the factory? I haven't really downloaded anything

When I open task manager it says I have 78 processes running, CPS usage is between 10-24% and physical memory is 47%

This is windows 7 btw.
Now I am computer retarded so any help in non-computer nerd speak will be helpful
Thanks. I would like to be able to use my computer without having to have it plugged in all the time.
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post #2 of 10 (permalink) Old 10-27-2011, 08:13 AM
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Turn the brightness of the screen down a little.

Make sure the WiFi is off if you're using a wired connection. Make sure Bluetooth is off if you're not using it.

Don't connect devises to USB unless you absolutely need them, the USB ports are powering those devices.

Go into the power settings and adjust it to throttle down the processor.

In the long run, you might consider getting yourself a Solid State Drive (SSD), they use up less power, aren't susceptible to knocking around, and are considerably faster than standard (spinning platter) hard drives.

It could also be that your machine is just a hog, and/or the batteries are cheap bottom end things. You might need to look into a larger battery with more cells.

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post #3 of 10 (permalink) Old 10-27-2011, 09:14 AM
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Most laptops have settings to extend battery life. Look for power settings (don't know where it is in Win 7) set it for maximum battery life. Lots of things will be throttled down, and the battery will last about 2x as long.

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post #4 of 10 (permalink) Old 10-27-2011, 10:29 AM
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the days of draining a battery to dead and running fully cycles are over, lithium batteries dont like this large cycle treatment and its actually detrimental to their health unlike the older NiCd or NiMH type batteries which developed memory and would suffer shorter run times due to short cycling and the deep discharging cycles could help to erase that memory.

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post #5 of 10 (permalink) Old 10-27-2011, 12:46 PM
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Quote:
Originally Posted by Pilotx1 View Post
the days of draining a battery to dead and running fully cycles are over, lithium batteries dont like this large cycle treatment and its actually detrimental to their health unlike the older NiCd or NiMH type batteries which developed memory and would suffer shorter run times due to short cycling and the deep discharging cycles could help to erase that memory.
While this is true...most laptop manufacturers have you do this in order to calibrate the battery/software. And I've been told by the manufacturers that exercising the battery like this helps balance the individual cells to work together.

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post #6 of 10 (permalink) Old 10-27-2011, 04:27 PM
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Quote:
Originally Posted by Lonely Raven View Post
While this is true...most laptop manufacturers have you do this in order to calibrate the battery/software. And I've been told by the manufacturers that exercising the battery like this helps balance the individual cells to work together.
+1

the switch to lithium did not eliminate the battery memory problem entirely, but it did lessen it.

oh and my 5 year old macbook still runs on battery for hours and hours, just sayin ;-)




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post #7 of 10 (permalink) Old 10-27-2011, 04:31 PM
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oh and my 5 year old macbook still runs on battery for hours and hours, just sayin ;-)
And you could have replaced the battery 100x over for the cost increase.

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post #8 of 10 (permalink) Old 10-27-2011, 04:32 PM
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Originally Posted by Flying_Hellfish View Post
And you could have replaced the battery 100x over for the cost increase.
Bahahahaha not quite LOL




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post #9 of 10 (permalink) Old 10-27-2011, 04:34 PM
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Quote:
Originally Posted by Pilotx1 View Post
the days of draining a battery to dead and running fully cycles are over, lithium batteries dont like this large cycle treatment and its actually detrimental to their health unlike the older NiCd or NiMH type batteries which developed memory and would suffer shorter run times due to short cycling and the deep discharging cycles could help to erase that memory.
+100. Run any lipo down too far and your battery is a brick that will not take a charge. When I was into RC cars I saw people cash $100 lipo packs by running them without a low cut off.
That said, best way to calibrate a lipo pack on a cell phone or computer from what I read is to leave the item on and wait until it hits 100%, next unplug the charger and turn off the item. Next plug the charger back in for 1 hr. Idea being that it resets the 100% cut off.
As to how to help the battery life, do as advised by other posters to save energy, also if you have not already done so make sure you have air under the computer, sitting on a carpet or table with little ventilation makes things hot. Batteries and electronics generally wear out faster with heat.

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post #10 of 10 (permalink) Old 10-27-2011, 04:38 PM
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I'm not sure if this has been covered, but another option is asking the manufacturer for a replacement battery if your's is defective.

Apple replaced my battery after 2.5 years of use for free of charge when I went to the store to buy a replacement battery.
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