AE101 Battery to Alternator Spec ????

[Dezaremos]

Corolla BigBody 1.6 4afe ..

How much amp does my stock alternator produce ?? I'm about to change battery because my current one is almost dead ..

Will I benefit on going 60ah or above battery than a 45ah ??? Usage is City Driving, frequest start & stop, less charging time ..

[jick.cejoco]

your corolla needs a 70 amp alternator and a 550 CCA battery

[Dezaremos]

your corolla needs a 70 amp alternator and a 550 CCA battery

I'm still using the stock original alternator .. How do I know the amp of this stock alternator ??

Lets say this is a 70 amp alternator, should I buy a battery with a lower amp than my alternator ??

Is there any disadvantage of a battery with 90 amp when pair with 70 amp alternator ???

[dr. d]

I'm still using the stock original alternator .. How do I know the amp of this stock alternator ??

Lets say this is a 70 amp alternator, should I buy a battery with a lower amp than my alternator ??

Is there any disadvantage of a battery with 90 amp when pair with 70 amp alternator ???

look closely at the alternator, po.
maybe the information you seek is pasted on its external surface. you may have to clean it first, so that the lyrics (if indeed there are) may be read-able.

maybe it is on the owner's manual.

errr... why get a bigger capacity battery, po? did the previous battery, give you instances of discharge? kung wala naman, i would suggest you stick to the original battery capacity.

i myself, replaced my original battery with a smaller capacity one, because it was cheaper and lighter.. stock vehicle.. no problems for several years already.

[Dezaremos]

look closely at the alternator, po.
maybe the information you seek is pasted on its external surface. you may have to clean it first, so that the lyrics (if indeed there are) may be read-able.

maybe it is on the owner's manual.

errr... why get a bigger capacity battery, po? did the previous battery, give you instances of discharge? kung wala naman, i would suggest you stick to the original battery capacity.

i myself, replaced my original battery with a smaller capacity one, because it was cheaper and lighter.. stock vehicle.. no problems for several years already.

my current battery is dying .. when travelling out of town, no problems because it has plenty of hours to charge .. but now that I'm back in city driving only, it gets discharge overnight .. I already have it charge a couple of times but still it gets discharge after 1 week or so ..

I was shopping for a panasonic battery 2sm, they have 60 amps for 3,500php; 65 amps for 3,700php & 70amps for 4,000php ...

I just wanna know if this statements is true when it comes to battery .. The bigger amp the better ?? If I get the 70amps battery, will it not damage my 60 or 65 amps alternator ?? I just get the idea that the alternator will not be able to charge the larger amp battery correctly ..

[dr. d]

my current battery is dying .. when travelling out of town, no problems because it has plenty of hours to charge .. but now that I'm back in city driving only, it gets discharge overnight .. I already have it charge a couple of times but still it gets discharge after 1 week or so ..

I was shopping for a panasonic battery 2sm, they have 60 amps for 3,500php; 65 amps for 3,700php & 70amps for 4,000php ...

I just wanna know if this statements is true when it comes to battery .. The bigger amp the better ?? If I get the 70amps battery, will it not damage my 60 or 65 amps alternator ?? I just get the idea that the alternator will not be able to charge the larger amp battery correctly ..

well, in this instance, your problem, sir, is that your battery needs to be replaced. it has lost so much of its "plate power" probably due to age and not due to alternator problem.
all batteries die eventually, po. 2 years is a good ballpark figure.

"champion" by motolite is cheap. 2.5K, and 6 months warranty. Hey! i'm already past 1 year, and still going strong.

btw... it might be a good idea to have them check your alternator brushes, po. they might be worn and need replacement. cheap lang yan, po.

many years ago, when we were young and poor-ish, it would take us a month or two, before we got tired of push-starting the car in the morning, and finally decide to pool our resources and buy a battery. punta kami sa independent assembler, si mang fred. he would assemble our brand new battery, from motolite components, using our old carcass. it was cheaper, too, and battery lasted like factory spec.

use bigger battery? i did the opposite... smaller battery. years na.. i perceive no drop in longevity.

[jick.cejoco]

use this analogy:


picture the alternator as a water pump
picture the battery as a water tank
picture a faucet as an electrical load or drain

the bigger the capacity of the water pump, the shorter the filling time
the bigger the water tank, the longer it is to fill
the bigger the leak or faucet deliver, the shorter the time it takes to fully drain the tank.

the charging system including the ignition switch, alternator, wiring and the battery were all engineered to handle the electrical loads under extreme conditions assuming the battery is healthy and there are no aftermarket electrical loads added on the system

[Dezaremos]

well, in this instance, your problem, sir, is that your battery needs to be replaced. it has lost so much of its "plate power" probably due to age and not due to alternator problem.
all batteries die eventually, po. 2 years is a good ballpark figure.

"champion" by motolite is cheap. 2.5K, and 6 months warranty. Hey! i'm already past 1 year, and still going strong.

btw... it might be a good idea to have them check your alternator brushes, po. they might be worn and need replacement. cheap lang yan, po.

many years ago, when we were young and poor-ish, it would take us a month or two, before we got tired of push-starting the car in the morning, and finally decide to pool our resources and buy a battery. punta kami sa independent assembler, si mang fred. he would assemble our brand new battery, from motolite components, using our old carcass. it was cheaper, too, and battery lasted like factory spec.

use bigger battery? i did the opposite... smaller battery. years na.. i perceive no drop in longevity.

in your opinion sir, which amp will I buy ?? 60, 65, 70 amps battery ??? all are same size 2sm battery ..

[red_one]

in your opinion sir, which amp will I buy ?? 60, 65, 70 amps battery ??? all are same size 2sm battery ..

Compute pesos per amps. Get the best price among the choices.

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[dr. d]

Compute pesos per amps. Get the best price among the choices.

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is there any disadvantage or advantage (except price) of installing a higher amp alternator to the car, even as the car is totally stock?

[Dezaremos]

is there any disadvantage or advantage (except price) of installing a higher amp alternator to the car, even as the car is totally stock?

i'm not after the alternator sir, i just want to know if using a battery that has bigger amp than the stock alternator will make the alternator work harder and eventually fails .. Because if that's the case then I will just buy the 60 amps battery rather than the 70 amps ...

[dr. d]

i'm not after the alternator sir, i just want to know if using a battery that has bigger amp than the stock alternator will make the alternator work harder and eventually fails .. Because if that's the case then I will just buy the 60 amps battery rather than the 70 amps ...

yespo. you made that clear enough above.
the question is for my benefit, sir. "what (dis)advantage does installing a higher amp alternator have on a totally stock car?"
anyone...?

as to your battery, i would stick to stock, sir.
or, if you wish, you can buy a battery on the basis of pesos per month warrantied.
and, in my opinion, the alternator does only what it can do. nothing more. "you can't make the alternator work too hard as to kill it, by using a bigger battery."

[red_one]

is there any disadvantage or advantage (except price) of installing a higher amp alternator to the car, even as the car is totally stock?

Higher amp alternator + stock car = No advantage. Just use stock alternator. Factory already matched that to the electrical load of the car.

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[red_one]

i'm not after the alternator sir, i just want to know if using a battery that has bigger amp than the stock alternator will make the alternator work harder and eventually fails .. Because if that's the case then I will just buy the 60 amps battery rather than the 70 amps ...

The alternator will provide power to your car electrical load first. Only the excess amps will go to the battery. The alternator will not work any harder if you use bigger amp battery. It will still produce the same amount of amps it is rated to.

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[box_type]

The alternator will provide power to your car electrical load first. Only the excess amps will go to the battery. The alternator will not work any harder if you use bigger amp battery. It will still produce the same amount of amps it is rated to.

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i beg to disagree, the battery will first provide the power for your car's electrical load like starting the engine. Once the car's engine starts the alternator takes over the electrical load. If you don't agree try taking out the battery and see if you can start your engine with your alternator first.

[red_one]

i beg to disagree, the battery will first provide the power for your car's electrical load like starting the engine. Once the car's engine starts the alternator takes over the electrical load. If you don't agree try taking out the battery and see if you can start your engine with your alternator first.

Of course the battery will provide the starting current to crank the engine. How can the alternator provide power when engine is still off. Kailangan pa ba explain yan? What I am discussing in my post is how the alternator charges the battery.

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[Mentis]

is there any disadvantage or advantage (except price) of installing a higher amp alternator to the car, even as the car is totally stock?

There is advantage in installing a higher output capacity alternator to the car, specially if the car has a lot of aftermarket additional electrical accessories installed. It will provide you extra available power for consuming.
Same goes if you'll going to install higher AmpereHour capacity battery.
It will not be a problem, if your alternator is stock as long as it still produces the correct voltage (14.27 dcv).
Battery is used during starting, after that alternator takes over, supplying the engine and the battery itself.
Take note:
whoever has the higher voltage output takes over the load! Meaning if your alternator has a lower output, battery output will be dominant until discharged.

Dis-advantage of putting higher alternator?
As long as, it is physically fitted on the original slot...no problem! Otherwise you'll have to cut and file some steel bracket & braces.
Electrically...none!


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[red_one]

Stock car kasi ang tanong. So stock alternator is more than enough.

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