2012 Macbook battery/charger

Discussion in 'MacBook Pro' started by Ashiquor, Jan 11, 2018.

  1. Ashiquor macrumors newbie

    Ashiquor

    Joined:
    Jan 11, 2018
    #1
    Hi,

    I recently bought a 2012 Macbook Pro 13" (because this is the last "upgradeabe").
    The battery has only 300ish cycle in it, so you can say it's in pretty "good" condition,
    but I feel it's depleting very fast. I'm not using it for heavy tasks, 'coz I have a dedicated desktop,
    but it's running High Sierra.
    My question is, is it advisable to replace the battery with a new one?

    The other issue is the charger. This mbp is from the US, but i'm living in hungary.
    When I plug the charger (even if i plug the charger first, and laptop as second),
    it creates a huge (I mean huge) spark. I've never experienced such a phenomenon, yet I had a few laptop,
    and if that was not enough, under load, the charger gives an audible electric noise.
    Should I be worry about it?

    I'm thinking to replace it aswell...

    Any advice?

    Thank You very much!
     
  2. New_Mac_Smell macrumors 68000

    New_Mac_Smell

    Joined:
    Oct 17, 2016
    Location:
    Shanghai
    #2
    Have you done any timing on the battery or just 'feeling'? Of course it's advisable to replace it given that it's over 5 years old now.

    May as well take the charger to Apple or authenticate it. Also check the wiring in your home, and make sure you're using the correct plug. Also most transformers will give off an audible buzz when drawing a high current, nothing to be concerned with.
     
  3. Ashiquor thread starter macrumors newbie

    Ashiquor

    Joined:
    Jan 11, 2018
    #3
    Thank You :)
     
  4. BrittWentz macrumors member

    Joined:
    Nov 22, 2017
    #4
    Are you using the Europe block adapter or third-party converter? My brick was US bought but i use it with the European extension cord and yes, sometimes i get that spark. Personally i think it's more of a home thing. But if you're worried just get a new adapter, you can keep that one as a spare JIC you ever need it.
     
  5. Ashiquor thread starter macrumors newbie

    Ashiquor

    Joined:
    Jan 11, 2018
    #5
    Honestly, I don't know. I bought it second hand, and the guy in the store just gave me a charger (it's genuine apple charger).
    But checking the plug, it's US (there's no "EUR" sign in plug" just 4 number. So according to Apple's info, it's US)
     
  6. New_Mac_Smell macrumors 68000

    New_Mac_Smell

    Joined:
    Oct 17, 2016
    Location:
    Shanghai
    #6
    There should be a CE stamp on the charger itself, if there's nothing like that then it isn't legal. I think what they were referring to was the actual socket adapter though, the bit that comes off and is changeable depending on location.
     
  7. BrittWentz macrumors member

    Joined:
    Nov 22, 2017
    #7
    Yeah, i meant the detachable part that connects to the actual wall, and if you were using it with a US to EU adapter like this one:

    upload_2018-1-18_1-3-54.png

    Because those are AWFUL and you should never use it with something like a computer. Just get the right cable accessory, you can get the official apple one for €25, and see if that fixes the problem.
     
  8. Fishrrman macrumors P6

    Fishrrman

    Joined:
    Feb 20, 2009
    #8
    Download "Coconut Battery".
    Run it.
    Take a screenshot of the results and post the pic here.
     
  9. Ashiquor thread starter macrumors newbie

    Ashiquor

    Joined:
    Jan 11, 2018
    #9
    Here it is. But I don't think the battery is manufactured in 2015 (but somewhere I read that it's not too reliable in this case)

    It's said it's in good condition, but I'm not getting more than (max) 4-5 hours, with normal using.

    Screen Shot 2018-01-18 at 19.43.20.png Screen Shot 2018-01-18 at 19.43.40.png

    Regarding the plug, we're using this type in EU, so I had to replace this part anyway, because apple recalled these.
    For-Apple-MacBook-Pro-ac-power-adapter-wall-plug-duckhead-EU-European-Union-Standard.jpg_640x640.jpg
     
  10. Fishrrman macrumors P6

    Fishrrman

    Joined:
    Feb 20, 2009
    #10
    Talk about coincidence.

    I just used Coconut Battery to check MY battery (2015 MBPro 13"), and it has a cycle count of 122 -- same as yours above.

    Mine shows 95.1% of design capacity.
    I try to recharge regularly around the 50% mark.

    With the older-style MBPro's (I have a 2010), I don't think the 4-5 hours that you're getting is "out of line".

    90% is nothing to worry about.
     
  11. Ashiquor thread starter macrumors newbie

    Ashiquor

    Joined:
    Jan 11, 2018
    #11
    A little update:

    I bought a new charger. No huge sparks (not even a small one *knock-knock-knock*), no buzzing noise.
    So it's worth a try if you have similar issues.
     

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10 January 11, 2018