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    G51Vx-A1 Battery

    Discussion in 'ASUS Gaming Notebook Forum' started by NBRUser0159099, Jun 29, 2010.

  1. NBRUser0159099

    NBRUser0159099 Notebook Deity

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    Ok...someone please explain what's going on here, i have had this laptop for less than a year and 37% wear? this is unacceptable!! the only thing "wrong" i see doing is that i have this laptop plugged in 90% of the time and the battery is slotted in during that period, or perhaps it maybe the 103°C temperature from within the computer's GPU that's causing massive heat exposure the cells, decreasing the life?

    ive noticed that @ 70% charge, it has 30mins of battery life on high-performance...i want an explanation please :)

    If i need to call them up and ask for a replacement, am i good to go since ive owned it for less than a year and such? the standard warranty with this laptop is 2 years anyways, so i should be more than covered to warrant a new battery replacement.

    [​IMG]
     
  2. NBRUser0159099

    NBRUser0159099 Notebook Deity

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    ummm bump?
     
  3. mahtson

    mahtson Notebook Geek

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    I would say that's a bit high - I've got 4% wear so far with probably 10-20 total cycles on the battery. The 2 year warranty does not cover the battery - that has one year. I don't think Asus would replace it under warranty since it is likely within their acceptable range - they don't know that you didn't cycle it hundreds of times already and I'm not sure if the battery has the circuitry to track that (too lazy to get rmclock going on a 64-bit OS but it may show if the battery counts the cycling).

    I'm actually curious how easily the cells in the battery pack can be replaced since these must contain 2300mAh cells. You can get 2900, and if you know where to look, the 3100's, that would give 25% and 35% increased battery life. Quality 2600mAh cells are cheap ($45 for six at everyday prices) and still good for a 15% runtime over stock cells. If the battery pack's memory can be reset for the wear level or other counters, you can improve the battery life a bit without spending the fortunes for new battery packs.

    As for "high performance" mode - do you have powermizer functioning? You shouldn't expect great battery life when the GPU's running at full speed like it does when it isn't down-clocking at low loads. The GPU in stock form consumes 75W on its own at max load with full clock speeds and with a 51 Watt Hour battery - well you can do the math. The rest of the system consumes nothing compared to the power hungry GPU. Batterymon or similar program will give you good enough figures to go off of. I get a load of 18W with usable screen brightness, wifi and bluetooth on and connected in high performance mode, 16.5W with them off and screen down all the way, and 16W in power saving mode.
     
  4. G73Guy

    G73Guy Notebook Consultant

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    OP while that is maybe high? It is within the normal range. Heat kills Li-Ion batts.

    They might replace if you make enough noise but no I do not think you should expect.
     
  5. dune10191

    dune10191 Notebook Evangelist

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    Would it be a good idea to remove my battery to prolong it if I don't really use it that much? If so should I store it in a special way?
     
  6. mahtson

    mahtson Notebook Geek

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    My battery degrades fairly quickly just sitting so you should reattach it every 3 months if you don't use it everyday. Now think about this - all the hot components are on the other side of the laptop, away from the battery...I'm not sure how much moving it will help. I saw you stress the laptop while it's plugged in, remove the battery, and then feel it. If it isn't any more warm on one side than another, heat isn't the issue. These also won't charge until it drops below a...92% charge level(?) so it isn't the continuous topping off that's killing it either. I'm not sure what problem that thing's facing.

    Check with Asus and see if you can get a replacement, but they may say no.
     
  7. NBRUser0159099

    NBRUser0159099 Notebook Deity

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    well i actually didnt have the battery inserted in my laptop for around 6 months, like september till march'ish. then i started keeping it in my laptop and as i said, it would just stay in the laptop while it was constantly connected to AC power.

    and i did a big gaming session today, and felt the battery...it felt normal like no way near a "hot feeling", just like normal plastic that's not cold, not hot. i also have my laptop lying on a blanket rite now (still connected to ac power) and the gpu is like 75ish but the battery still feels normal. so i have no idea what it could be, but i will give ASUS a call, or if i cant call em, email em.

    hopefully i can get a replacement before august/september since that's when the 1yr warranty ends.
     
  8. mahtson

    mahtson Notebook Geek

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    Yeah, I doubt heat is the issue in these laptops. Leaving it connected isn't an issue since the problem with that is systems that continuously top off the battery - ours will only charge when it drops to 92%. Sure it's a top off but not the continuous trickle at 99%-100% that causes more problems.

    I've also had G50's that had less than 10% wear (something like 8%, 4.5% and 1%) and were all older than the G51. Some were used on the battery a bit and some just left connected to AC. Batter usage did not seem to impact the battery - them draining down to next to nothing from being out of the laptop or sitting unused showed the most wear.
     
  9. NBRUser0159099

    NBRUser0159099 Notebook Deity

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    anyone know what would be the best way to contact them? need to do it quickly before my warranty runs out, like in a month lol
     
  10. jagg3d3d93

    jagg3d3d93 Notebook Consultant

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    I can almost guarantee they won't give you a new battery, laptop batteries are efficient for about 2 years on average, so ~100% wear = 2 years, 37%= <1 year. The cells have just worn down from usage, also you noted how you left your battery out of your laptop for about 6 months, if it had any sort of charge in it the battery would "wear out" quicker because that remnant charge can't dissipate and the cells have that "memory" of the charge, this is less prominent in modern batteries but still exists. So your only real option is to buy a new battery. PEBKAC
     
  11. NBRUser0159099

    NBRUser0159099 Notebook Deity

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    are you sure cuz i mean there's no harm in trying...i really find it hard to believe that a battery's average wear should be 39% after <1 year, most of my friend's laptops (including someone who owns a G60Jx) have less than 10% wear.
     
  12. jagg3d3d93

    jagg3d3d93 Notebook Consultant

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    What I am saying, and I am not trying to be rude, is that the battery wear is your fault, removing a battery from a laptop for 6 months an not cycling it or storing it properly will cause increased wear on the battery.