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  1. Join Date
    Jan 2013
    Posts
    4
    #1
    Mga Sir, May tatanung lang po ako kung pwede bang taasan ang charging capacity ng alternator ko?
    25 AMPS Kasi ung charging ng alternator ko and if kung pwede sanang ipa-upgrade ang charging nito to 60 AMPS?
    Wala Naman akong issues about sa alternator ko and we are using it for years and dinadala lang namin si trusted electrician namin sa navotas para palitan lang ang carbon and else wala nang problems and plan kasi rin namin maglagay ng Car Audio sa owner type jeep namin. And I had a feel na baka magkaroon ako ng issues regarding sa headlight dimming. Plan namin kasi maglagay Amplifier na V12 MRV f705U and then NBN Amplified 10 inch subwoofer and 2 JVC Home Speakers(50 watts RMS, 200watts max).

    And Add ko lang tong question: Kelangan pa bang lagyan ng fuse block ang positive wire na ng gagaling sa battery papuntang ampli?
    Kasi pansin ko may fuse naman kasi na dun sa ampli and tanong ko if ok lang kung wala na nun.

    Sensya na newbie lang sa ganito

    TIA Guys

  2. Join Date
    Jul 2006
    Posts
    8,555
    #2
    Save yourself the hassle of upgrading your current alternator's capacity. Replace the whole thing with one that has the rating that you need. Simple retrofit lang yan using/fabricating brackets and electrical connections. Kayang kaya ng auto electrician yan.

    My 2 cents.

  3. Join Date
    Jun 2011
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    4,513
    #3
    GO to mardenrey balic balic manila near blumentrit.... 140 amperes nila nasa 5.5k lang including installation....

  4. Join Date
    Jan 2013
    Posts
    4
    #4
    Pero kakayanin ba ng charging ng sasakyan namin if ung 25 AMPs na alternator namin ay lagyan ng Car Audio as I mentioned above?
    No prob naman sa charging un. and ung Motolite na Enduro ay tumatagal ng almost 2 years at 1 start din ung sasakyan mga sir

  5. Join Date
    Jul 2006
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    8,555
    #5
    Quote Originally Posted by Benjamin Nacis View Post
    Pero kakayanin ba ng charging ng sasakyan namin if ung 25 AMPs na alternator namin ay lagyan ng Car Audio as I mentioned above?
    No, hindi kakayanin ng present alternator niyo ang current requirements ng "sound-set-up" niyo. At the very least, upgrade your alternator into a 55 amp unit. Its much better to have an alternator na medyo malaki sa current requirements ng electrical system niyo than an under capacity one.

  6. Join Date
    Jan 2013
    Posts
    4
    #6
    Ahh thanks po sa reply. How much naman po magagastos if Ung current alt namin is ipataas ung charging capacity nya? Is it much cheaper kung bibili na lang ng bagong alt na 60 or 140 amp tulad ng sabi ni glenn or ipataas na lang ung charging capacity nitong current amp namin?

  7. Join Date
    Jul 2006
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    8,555
    #7
    I dont know how much magagastos ninyo, but I think its not that expensive. I suggest you replace the whole alternator with a bigger capacity one.

  8. Join Date
    Jan 2013
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    4
    #8
    Hindi ba masusunog ung mga other wiring ko gaya ng sa lights, electric fan or other electrical wirings if tinaasan ko ung AMP charging ko if fully charged na sya for example to 140 AMPS?. I mean na if nasa 0 Amps na ung Amp Meter ko and tumatakbo na ako ng malayo diba ung alt na lang nagsusuply ng other electricals sa sasakyan habang umaandar and ung battery is full charge na nun. san mapupunta ung excess na electrical if tinaasan ko kunwari ng 140 AMPs ung charging system nya?

  9. Join Date
    Oct 2011
    Posts
    26,781
    #9
    nakikita kong problema ay ung baterya baka mabilis masira if you increase the ampere capacity of your alternator. maganda sa baterya dahan2x pag charge.

  10. Join Date
    Jul 2003
    Posts
    573
    #10
    Amp-Rating of alternator means it has the capacity to deliver the rated current. Charging voltage of the battery is controlled by the voltage-current regulator of the alternator. As long as the alternator regulator is working, it will not overcharge the battery.

  11. Join Date
    Mar 2008
    Posts
    54,619
    #11
    1. 25 amps? ano yan, pang-beetle? heh heh.
    2. yes, it is more practical to replace the entire alternator than re-winding it.
    3. yes, you can rely on your built-in audio fuse, but this will entail pulling out the thing just to replace the busted fuse. in fact, you will have to pull out the thing just to check if the fuse is busted or not. i suggest you put in a fuse block. it's more practical to service than anything. besides, you have an owner.. lotsa space there..
    4. can the wires take it? the wires to the appliance can probably take it, because the deciding factor is the appliance, not the battery or the alternator. but i suggest you upgrade your wires to and from the alternator, and check the main battery cables and the ground.. routine things.. and since you have an owner, it's very easy to do this..
    5. when in doubt, consult a professional. they're cheaper than a burned owner jeep..
    Last edited by dr. d; April 17th, 2013 at 09:02 PM.

  12. Join Date
    Jun 2011
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    4,513
    #12
    Quote Originally Posted by Benjamin Nacis View Post
    Hindi ba masusunog ung mga other wiring ko gaya ng sa lights, electric fan or other electrical wirings if tinaasan ko ung AMP charging ko if fully charged na sya for example to 140 AMPS?. I mean na if nasa 0 Amps na ung Amp Meter ko and tumatakbo na ako ng malayo diba ung alt na lang nagsusuply ng other electricals sa sasakyan habang umaandar and ung battery is full charge na nun. san mapupunta ung excess na electrical if tinaasan ko kunwari ng 140 AMPs ung charging system nya?

    IMO same 12volts pa din ang output ng alternator mo at battery... no effect at all po yan... even if you use a bigger battery... OR a higher amp alternator.. same output 12-14.8volts... the output is regulated by the alternators IC....

    masisira lang yan kapag 24v battery ang gamit nyo...

  13. Join Date
    Jul 2010
    Posts
    570
    #13
    Tama si Glenn. Consume lang electrical device ng kotse yun required current. So, same size pa rin mga wires at fuse.

    Imagine mo lang na kung ilan megawatt generator gamit sa supply ng Meralco para sa bahay natin. Wala naman problem sa atin.

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Upgrading The Alternator's Charging