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  1. Join Date
    Jul 2018
    Posts
    3
    #51
    yes ang hirap! mobile phone and bluetooth speaker ang pansamantagal
    Quote Originally Posted by dr. d View Post
    bring the car to a proper auto electrician, where it can be properly trouble-shot.
    personally, i find it difficult to drive around without in-car entertainment and lights.
    your cigarette lighter is probably also out.

  2. Join Date
    May 2018
    Posts
    39
    #52
    Quote Originally Posted by red_one View Post
    I use in-car voltmeter for monitoring voltages and have an automatic car battery charger desulfator for maintaining battery health at home.





    Sent from my ASUS_X00DDA using Tapatalk
    ano po ba dapat ang reading ng voltage nito? before and after magstart?

  3. Join Date
    Aug 2012
    Posts
    2,767
    #53
    Quote Originally Posted by techglimpse View Post
    ano po ba dapat ang reading ng voltage nito? before and after magstart?
    Before start = 12V and up.
    After start = 14V and up.

    Sent from my ASUS_X00TDB using Tapatalk

  4. Join Date
    May 2006
    Posts
    1,595
    #54
    When cranking, pag umabot ng 7V, palit ka na.

    Sent from my ONEPLUS A5000 using Tapatalk

  5. Join Date
    Jun 2005
    Posts
    3,293
    #55
    Quote Originally Posted by istan View Post
    When cranking, pag umabot ng 7V, palit ka na.

    Sent from my ONEPLUS A5000 using Tapatalk
    Actually, 9v lang palit kanna dapat. At 7v, swerte mo na magstart pa yan

    Sent from my MI MAX 2 using Tapatalk

  6. Join Date
    May 2006
    Posts
    1,595
    #56
    Sa cranking lang naman, bumabalik sa 12V agad pag nag start na.

    Normal start sa akin 9V.
    May scangauge kasi ako.

    Sent from my ONEPLUS A5000 using Tapatalk

  7. Join Date
    Jun 2005
    Posts
    3,293
    #57
    Quote Originally Posted by istan View Post
    Sa cranking lang naman, bumabalik sa 12V agad pag nag start na.

    Normal start sa akin 9V.
    May scangauge kasi ako.

    Sent from my ONEPLUS A5000 using Tapatalk
    Ah. You use them obd testers. Afaik there are some delay in the reading there.

    I use fluke true rms multi tester that records the highest and lowest voltages down to in millivolts and time recording.

    Sent from my MI MAX 2 using Tapatalk

  8. Join Date
    May 2014
    Posts
    13,468
    #58
    Quote Originally Posted by istan View Post
    Sa cranking lang naman, bumabalik sa 12V agad pag nag start na.

    Normal start sa akin 9V.
    May scangauge kasi ako.

    Sent from my ONEPLUS A5000 using Tapatalk
    actually maski 9v ang binaba pag starting, alanganin nag condition ng battery mo bro.
    try mo muna i charge batt to full, then remove float charge; test crank ulit
    Last edited by ninjababez; December 29th, 2018 at 06:22 AM.

  9. Join Date
    Mar 2008
    Posts
    38,099
    #59
    Quote Originally Posted by techglimpse View Post
    ano po ba dapat ang reading ng voltage nito? before and after magstart?
    before starting, that's your battery voltage.
    after starting, and with the engine running, you are now measuring your alternator's output voltage.
    Last edited by dr. d; December 29th, 2018 at 09:37 AM.

  10. Join Date
    Nov 2009
    Posts
    3,055
    #60
    Quote Originally Posted by istan View Post
    Sa cranking lang naman, bumabalik sa 12V agad pag nag start na.

    Normal start sa akin 9V.
    May scangauge kasi ako.

    Sent from my ONEPLUS A5000 using Tapatalk
    Sira ang charging system/ alternator mo.

    After starting, Vo should be at charging voltage = 13.8V.

    Kung 12V yan at cranking at 7Vdrop, battery lang ang tumatrabaho.

    Have your alternator checked asap if you don't want to ruin the battery.

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