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    Presario 2500 celeron batt life

    Discussion in 'HP' started by sorrydog, Jun 8, 2006.

  1. sorrydog

    sorrydog Notebook Enthusiast

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    I'm working on a friend's two year old 2596 preserio (2.6 Celeron) and I've been using it while I wait on the Dell I just ordered. She pretty much only uses it for email and web, so it's fine for her. I added a 256 stick to bring it to 512 minus shared vid to make the multitasking a little more palatible and replaced the battery since it was only getting 15 minutes unplugged. The local battery store gave me a Li-on brand called Nuon but the new one seems to only get about 40 to 60 min surfing and few other low cpu use programs but the cpu use seems to average around 50% (I keep lots of windows open) so the fans seem to kick off alot. Been through about 15 charge/discharge cycles and it's not getting better.

    It there any program that I can undervolt this setup when I give it back? Battery life is more important to her than performance. Should I take the battery back or could there be an actual hardware problem? Sometimes the meter will show 33% and then shutoff cold a couple of minutes later...not even giving it a chance to hibernate. Also seems to take a real long time to charge sometimes and not so long other times. One time I left it running plugged in all night long, took it somewhere and had to plug in just to start and charge again from 0%.
    Laptop still has a few months left of Bestbuy extended warranty if there's something wrong with the charging circuits.

    I know these models are notorious for crap battery life (which the hotplate underside confirms), but I was expecting a little more from a new Lion... at least enough to watch a hour long TV avi which it won't do right now. My now deceased r3000 which the lesser Nimh batt would go 3 times as long with dedicated vid and a bigger screen doing the same stuff.
     
  2. sorrydog

    sorrydog Notebook Enthusiast

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    come on guys help me out...

    I know this is an older laptop but my Gateway Solo back in 1995 was better than this...
     
  3. admlam

    admlam Notebook Deity NBR Reviewer

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    From what you have described, I believe the battery is the problem.

    I own a Presario 2538CL, which is essentially the DTR model packing a full blown Northwood P4. My battery life ranges from 2 hours to 2.5 hours. This is using HP's battery (# f4809a/f4812a).