M4800 Owner's Thread

Discussion in 'Dell Latitude, Vostro, and Precision' started by changt34x, Oct 29, 2013.

  1. xacques

    xacques Notebook Enthusiast

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    What about my primary battery with 123 cycles and 28% wear also? I don't know if that health is accurate. Both my primary battery and my secondary SLICE battery have different charge cycles and the same health number. Both batteries are 97Wh 9 cell. Yet the dell command power manager application shows health as full and health as excellent. What does your health say on the dell command power manager application?
     
  2. jcvjcvjcvjcv

    jcvjcvjcvjcv Notebook Evangelist

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    My W520 has 29% wear on a 320 cycle count :p

    The reason I dropped in here;
    I came across an ad for a refurb M4800 where it said it had a FHD IPS screen. After my request for confirmation on that, the seller said he checked the service tag and it said
    "Liquid Crystal Display,15.6FHD,In Plane Switching,Embedded Display Port,AG,Legend"

    Is this a first, or am I missing something? I thought there was no IPS in the M4800, or at least not in the FHD category?
     
  3. scrlk

    scrlk Notebook Consultant

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    Excellent as well.

    Depends who made your W520 battery. Panasonic make the best cells - then LG and in last place Sanyo.

    The M4800 was silently updated to support eDP at the start of this year, and also introduced 1080p IPS. Bit of a kick in the balls for owners of older M4800s.
     
  4. jcvjcvjcvjcv

    jcvjcvjcvjcv Notebook Evangelist

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    Mine is LGC. Too bad it's hard to find sellers who list the cell maker.

    I think the whole 16:9 sham is just as much a kick in the balls.

    But updated to support eDP, so meaning they changed the mainboard too? They used LVDS before that? :eek: Old standards seem to die slowly these days.
     
  5. scrlk

    scrlk Notebook Consultant

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    Yeah - haven't used my Sanyo X220 9 cell in a while (basically brand new from the Lenovo battery recall - 3 cycles) and it discharged to 0%. After recharging I found I lost 1000 mAh which is pretty bad for a brand new battery. Seems like you can't win with batteries.

    Apple seem to be the last stronghold for 16:10 panels on laptops and I'm really tempted to get a retina MacBook as my next machine given that everyone else seems to be intent on copying Apple but failing miserably.

    Probably to save on work Dell initially released the M4800/6800 + Latitude E6440 + E6540 as LVDS machines even though HP & Lenovo moved to eDP. This lead to the weird situation where the QHD panel on the M4800 needed some sort of LVDS -> eDP converter which resulted in switchable GPUs not being enabled on QHD machines.
     
  6. xacques

    xacques Notebook Enthusiast

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    My both batteries which were bought from dell, say the manufacturer is SMP. I just read all Dell's MSDS on their batteries. (SMP) is Simplo Technology Co., Ltd. Through Dell's material safety data sheets, the other manufacturers are (SDI) SAMSUNG SDI Co., Ltd., (LGC) LG Chemical Ltd., (BYD) BYD LITHIUM BATTERY Co., Ltd., Sony Energy Devices corporation, ATL Amperex Technology Ltd., (BAK) SHENZHEN BAK TECHNOLOGY CO., Ltd., and Sanyo Electric Co., Ltd. (which the parent company is Panasonic). "All models Sanyo manufactured and whose capacity is less than or equal to 5.4Ah, including the cell branded as Panasonic, excluding the cell whose shape is prismatic and two or more side of short / middle / long side excess 12mm/85mm/110mm"
     
    Last edited: Nov 1, 2015
  7. jcvjcvjcvjcv

    jcvjcvjcvjcv Notebook Evangelist

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    First few charges it never fills up completely. But leaving it empty in storage is about the best way to guarantee it's demise.
     
  8. nerdybyrds

    nerdybyrds Newbie

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    Hello Everyone,

    Can someone confirm whether or not the 4k UHD models support optimus? Thanks!
     
  9. scrlk

    scrlk Notebook Consultant

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    I cocked up when I read the TLP battery stats; the reported full capacity is 1000 mAh less than the actual full capacity.

    I do try and keep it at 60% when not in use.
     
  10. jedisurfer1

    jedisurfer1 Notebook Deity

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    My last few dells had Sanyo batteries, seems it's all I get. My lenovos with panasonics still run at or near 95%+ capacity. Sanyo sucks for batteries.
     
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