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Where can I find the specific place of CMOS battery in Lenovo G585 ?

Posted by Madelene Kiden on

  • 4 more comments 
  • Larry Ng
    Larry Ng Feb 28, 2021

    there are 4 classes of RTC CMOS batteries
    1: none, used the huge battery on thin PCs.
    yours is not that.
    2: CR2032, coin.+socket easy.
    3: cr2032, coin plus pigtails.
    4: NiMh or rechargeable lithium solder down.

    well the most easy is to pretend buy one
    from ebay and most sellers show both sides of the board.(search G585 motherboard)
    and bingo.
    if you have no service manual that is one way.
    also learn to watch out for old PCs that
    do not use real Coins. but use in the stead
    a rechargeable battery that solders down.
    do not use the wrong battery or it explodes
    they manual says that clear as day same words.

    no full model told nor the mother board model exactly but some are solder down here for sure.
    here it is, do not solder in the wrong battery it will "catch fire or explode"
    the manual told you that if you read it.

  • Anonymous Feb 28, 2021

    the word is fully dismantle PC
    some have 34 screens to get there.
    my dell is 4 screws bottom off and simple coin. next time buy dell?

  • Larry Ng
    Larry Ng Feb 28, 2021

    the manual posted page 60 shows how to get the board out.
    then you unsolder old cell
    then solder in new.
    end. reverse disassembly and try not to break ribbon jacks as all NOOBS do.
    laptops need 10x the skills of other PCs.
    they are fragile.

  • Larry Ng
    Larry Ng Feb 28, 2021

    the manual tells you to charge the battery for 12+hours before using it.
    it is not a coin cell at all, ML1220 is my best guess, rechargeable it is. on bottom of mobo.

  • Larry Ng
    Larry Ng Jul 27, 2021

    a trick to try, is easy takes only seconds
    go to ebay.com
    type, Lenovo G585 motherboard

    see photos of it sure.
    see front and back, bingo if coin is there you see it there.
    as easy as that.
    oops just looked for you and its on the bottom of the mobo
    and is NOT A COIN cell it is a solder down coin , with 2 pins soldered down and NO SOCKET.
    so dreaming it does not work here.
    only facts matter.
    bingo
    the manual tells you to charge it for 12hours first did you? if not it will fail, AC connected, turned on PC.
    this old most are now dead.
    i bet it is a Panasonic ML1220 battery there, I look first then leap 2nd , it is 9 years old, how can it be good?

    I am late with facts, had time today to look your PC up, took, me 60 seconds.
    Read the manual and show photo of rechargeable battery.

  • Anonymous Jul 27, 2021

    find it,
    google all week
    it's not in the manual
    dismantile the PC
    see 3 kinds of RTC bats.

    1: a coin cell and socket (nope not here)
    2: a pig tailed coin Red/black wires + plug, common only on laptops. (varies by model and sub models of PC)
    3: a soldered down cell (bright colors, warped) bingo ML1220 rechargeable. yup.

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3 Answers

Larry Ng

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  • Lenovo Master
  • 6,088 Answers

The battery is not a coin cell at all (not a CR3032 like seen on desktops)
it is rechargeable soldered down battery.
ml1220 is my guess.

if you had called them they tell you "only our shops can fix that" and a phone number in the manual if you read it.

yes the battery is sold, but I ask you now, are you removing 40 screws to that
I BET NOT.
am I right?

Posted on Jul 27, 2021

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  • Anonymous Jul 27, 2021

    SOLDERED DOWN, IT IS.
    AND IS ML1220 ,
    SOME HERE HAVE A PLASTIC FILM COVERING IT (A LEAKAGE DEFLECTOR)

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Https://www.lenovo.com/us/en/
This is the first place I'd look.

Posted on Feb 10, 2021

  • Anonymous Jul 27, 2021

    THE MAKER DOES NOT COVER THAT BATTER (NON USERS REPLACEBLE) RTC SOLDERED DOWN BATTERY., THE MANUAL only tells you it explodes if wrong one is use, period.

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It should be on your motherboard. You have to carefully disassemble you lap top .. Removing all Usb,Battery, and external connections.

U need a small screw driver to take it apart.

Leave your computer on for a day. If your need specifics let me know!

Posted on May 07, 2012

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