Is this really a 7900 mAh rated battery?

Discussion in 'Accessories' started by iubball, May 1, 2009.

  1. iubball

    iubball

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    Bought this from IAXTech on eBay. Battery arrived yesterday, and seems to run pretty well, but seems to be a little under what they rated. I e-mailed them before I purchased, and I have a copy of the e-mail that states that they guarantee their quality. Using Notebook BatteryInfo, I obtained the following information.

    Designed Capacity 73260 mWh
    Fully Charged Capacity 71773 mWh
    Wear level - 3%
    Battery is Sanyo

    I thought for a 7900 battery that the capacity should be somewhere in the 80000 mWh range. Am I correct? Thanks for your help. Also, could someone tell me how they posted screen shots? I tried the Print Screen button, as well as Cntrl - Prnt Scrn, with no luck. Thanks
     
    iubball, May 1, 2009
    #1
  2. iubball

    ssmorol

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    iubball,
    what are your impressions of the battery now that you have used it for a little bit? I am thinking about the same battery. Any info you have would be appreciated.
    Thanks
     
    ssmorol, Jun 10, 2009
    #2
  3. iubball

    Rich in ILM

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    Divide 71773 by whatever the voltage is (11.8?) to derive mAh. I think you are going to be disappointed.
    Make sure you get the voltage reading with the AC disconnected and the battery at close to 100%.
     
    Rich in ILM, Jun 10, 2009
    #3
  4. iubball

    ssmorol

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    I received the battery today and I am quite pleased so far. I ordered it Wednesday morning. It shipped same day and I got it today (friday). So only 2 days.
    It looks like every other 9 cell battery that I have seen. it is big, but I have had no problems with it on my lap or on my desk. It actually feels more comfortable because of the slight angle it provides.
    I ordered the blue one. It matches my netbook pretty well. It doesn't have the metallic clear coat look like the laptop, but the color is very close.
    Now to the good stuff. From battery info...Battery manufacturer is SANYO. Designed capacity = 85320mWh, which I think if I have this right = 85320/11.1 = ~ 7800 or possibly 7900 as stated. I am very happy about that because I was worried about getting a 7200. Full charged capacity is at 83635 right now. Hopefully that will go up as I cycle it the first few times. The wear level was only 2%! Which was lower than even my acer battery. So I think I got a good battery!
    [attachment=1:153wwsrw]battery start.JPG[/attachment:153wwsrw]
    The battery arrived at 57% and approx 4:30 remaining on the battery icon on the status bar. Battery info showed between 4 - 4.5 hours as it was fluctuating constantly depending on what I was doing. It also showed 57%. The picture I took actually showed 4:07 remaining.
    [attachment=0:153wwsrw]battery start2.JPG[/attachment:153wwsrw]

    I am hoping this holds up. If it does, I think it is a steal at $52.99 shipped in 2 days!
     
    ssmorol, Jun 13, 2009
    #4
  5. iubball

    ssmorol

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    Capacity did not go up after the first charge. I may not have let it charge long enough? Capacity went down slightly to 83300.
     
    ssmorol, Jun 13, 2009
    #5
  6. iubball

    Modred189

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    I just got mine. AS it arrived, 56% charged, capacity is listed as 83, 948. Wear is 1.6% of 85320.
    Not too shabby at all. I will update as I power cycle.
     
    Modred189, Aug 5, 2009
    #6
  7. iubball

    t5enter

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    I have the 7900mAh battery!

    Comparsion:

    Old 2200mAh (UM08A31): O
    New 7900mAh: N


    O: 10,8v
    N: 11,1V

    O: 160gr
    N: 459gr

    O: SANYO
    N: SANYO

    O: Designed: 23760mWh Full: 22961mWh Wear:4% (7months use)
    N: Designed: 83516mWh Full: 83894mWh Wear:3% (brand new without recharge, 48% factory charge)

    8,9",Xp,160gb,1GB,

    During the test: Screen brightness full, cpu use:40-90%, playing xvid movie,connected on Wlan,

    O: 1:37min
    N: 5:08min
     
    t5enter, Nov 14, 2009
    #7
  8. iubball

    Yuravi

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    You've been sold a 6600 mAh battery.
     
    Yuravi, Feb 11, 2010
    #8
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