Capacitor

[DIGIDIGIBOMBO 10+ year member]

whats to handle? no matter what the alt still has to charge the same amount of power back thats used, no matter if it goes to 1 bat or 3 bats and 1 50 farad cap...

wow wow wow what man??? well when connecting loads in parallel, yeah the voltage is still the same but the amperes will be split. If one battery is extracting 20amperes from alt, then 3 same batteries will extract 60amperes, so is it still the same?? no way the alt will be ****ed up in no time. Its like when u connect many speakers in parallel, the resistance will be lower, and for the same voltage the amperes extracted will be higher, thats y when the amp is connected to 2 ohms it will work harder and gets hotter......then when it is connected to 4 ohms. So how are u saying it doesnt matter, if it doesnt matter than companies would have only built one alternator model, y the hell there is an 80 amperes, 100amperes,150amperes alt and all of them supply the same voltage?No doubt that more batteries means more load on alt. Dont tell me i am wrong//content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif//content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif

 

[fatryan 5,000+ posts]

wow wow wow what man??? well when connecting loads in parallel, yeah the voltage is still the same but the amperes will be split. If one battery is extracting 20amperes from alt, then 3 same batteries will extract 60amperes, so is it still the same?? no way the alt will be ****ed up in no time. Its like when u connect many speakers in parallel, the resistance will be lower, and for the same voltage the amperes extracted will be higher, thats y when the amp is connected to 2 ohms it will work harder and gets hotter......then when it is connected to 4 ohms. So how are u saying it doesnt matter, if it doesnt matter than companies would have only built one alternator model, y the hell there is an 80 amperes, 100amperes,150amperes alt and all of them supply the same voltage?No doubt that more batteries means more load on alt. Dont tell me i am wrong//content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif//content.invisioncic.com/y282845/emoticons/crying.gif.ec0ebefe590df0251476573bc49e46d8.gif

well im just repeating what i learned here at CA. im not an expert on this or anything. so i def could be wrong. but, i would like for you to explain this a little more. say i had a system with 1 bat and an amp that drew 40 amps or current at a single moment. that current is taken from the bat, which then is a load placed on the alt, right? now what if i had the same system but with 2 bats. the amp would draw 40 amps or currents from the 2 bats. which means each would put a 20 amp load on the alt for a total of 40. this is how it was explained to me...

 

[audiolife 5,000+ posts]

it goes alt then battery blah blah thing is unless your system is outragously powerful or you listen to rap that has ungodly amounts of long long bass notes your system will not draw "peak" current very often. i will not say a 200 amp alt isnt really ever needed but in alot of cases makes a nice saftey net. back in the day i had a large system of ppi m series amps (later even pro mos) ran it off 120 amp dual output alt. 2 batteries in back isolated i had about 200-250 max amp draw (all class ab as class d's were still ten years away lol) never had a single problem. when the lights start dimming its common sense to let the electrical recharge and it isnt bad practice to maintain charge your batteries from time to time (just dont over charge them.)

 

[fatryan 5,000+ posts]

it goes alt then battery blah blah thing is unless your system is outragously powerful or you listen to rap that has ungodly amounts of long long bass notes your system will not draw "peak" current very often. i will not say a 200 amp alt isnt really ever needed but in alot of cases makes a nice saftey net. back in the day i had a large system of ppi m series amps (later even pro mos) ran it off 120 amp dual output alt. 2 batteries in back isolated i had about 200-250 max amp draw (all class ab as class d's were still ten years away lol) never had a single problem. when the lights start dimming its common sense to let the electrical recharge and it isnt bad practice to maintain charge your batteries from time to time (just dont over charge them.)

how do you overcharge a battery? i thought they had overcharge protection

 

[audiolife 5,000+ posts]

a charger might but a battery doesnt ...you just keep charging it until you "cook out" all the fluid.

 

[DIGIDIGIBOMBO 10+ year member]

Hi again Fatryan, yes in a way ur right, but dude once the car is on the load is on the alt not the batteries. Adding a second battery will surely be better if ur gonna listen to music while the car is off, cause it will take more time to discharge both of them. And once u turn on the car and now u have 2 empty batteries they will be so hungry for amperes, they will both try to extract as much as possibe from the alt even when ur audio system is off. When a battery is empty it will **** up tooooo much amperes from alt, while charging it will **** up less and less amperes and its voltage will be increasing.Also like u said, now with 2 batteries u will need much more time in order to charge them with the same alt, if ur alt is not able to charge one battery how is it possible to charge 2? I am not 100% sure either but the best way is to change the alt. Dude ur fogetting that when the car is on the battery and the amp are 2 loads, not only the amp. Suppose u have one 100amperes battery, it needs 10amperes from the alt to charge+ur amp needs 40amperes=>50amperes from alt. Now u have two 100amperes, so they need 20amperes from alt+40 amperes from amp=>60amperes from alt.

An electrician i know used to repair battery chargers, he told me the charger needs to be able to provide at least 10% amperes from the overall battery ability, and here the chargers only charge the battery in a house, and when we used the battery the charger was off. So a 40 ampere battery needed 4 amperes from the charger.....one time the batt was sooooo empty when we turned the charger on, the charger got damaged because an empty battery sucks out toooooooooooooo much amperes the first few seconds. Its like when u are drawning under water once u get out u just inhale tooooooooooooo much oxygene and then ur breathing rate decreases

 

[fatryan 5,000+ posts]

a charger might but a battery doesnt ...you just keep charging it until you "cook out" all the fluid.

well then how do i never overcharge my battery?

 

[fatryan 5,000+ posts]

Hi again Fatryan, yes in a way ur right, but dude once the car is on the load is on the alt not the batteries. Adding a second battery will surely be better if ur gonna listen to music while the car is off, cause it will take more time to discharge both of them. And once u turn on the car and now u have 2 empty batteries they will be so hungry for amperes, they will both try to extract as much as possibe from the alt even when ur audio system is off. When a battery is empty it will **** up tooooo much amperes from alt, while charging it will **** up less and less amperes and its voltage will be increasing.Also like u said, now with 2 batteries u will need much more time in order to charge them with the same alt, if ur alt is not able to charge one battery how is it possible to charge 2? I am not 100% sure either but the best way is to change the alt. Dude ur fogetting that when the car is on the battery and the amp are 2 loads, not only the amp. Suppose u have one 100amperes battery, it needs 10amperes from the alt to charge+ur amp needs 40amperes=>50amperes from alt. Now u have two 100amperes, so they need 20amperes from alt+40 amperes from amp=>60amperes from alt.An electrician i know used to repair battery chargers, he told me the charger needs to be able to provide at least 10% amperes from the overall battery ability, and here the chargers only charge the battery in a house, and when we used the battery the charger was off. So a 40 ampere battery needed 4 amperes from the charger.....one time the batt was sooooo empty when we turned the charger on, the charger got damaged because an empty battery sucks out toooooooooooooo much amperes the first few seconds. Its like when u are drawning under water once u get out u just inhale tooooooooooooo much oxygene and then ur breathing rate decreases

i wasnt talking about when the car was off, i was talking about when the car was on. but i gues if you drain you bat with the car off then turn it on to recharge, that makes sense. and i didnt know the bat put its own load on the alt. i just thought that if the battery needed a charge, thats the load it'd put on the alt, nothing else.

 

[JimJ 5,000+ posts]

well then how do i never overcharge my battery?

The alternator's regulator...

 

[fatryan 5,000+ posts]

The alternator's regulator...

well then why did that guy mention overcharging batteries, if the alt reg prevents that?

 

[audiolife 5,000+ posts]

The alternator's regulator...

and on a charger just dont be a dumb *** and let a 12 v battery charge to 17 v lol it starts getting hot then when you take it off it might read high until you hook it up to something

 

[JimJ 5,000+ posts]

well then why did that guy mention overcharging batteries, if the alt reg prevents that?

Because if the regulator ever fails and starts providing too much voltage to the battery, you get a nice condition known as thermal runaway...voltage increases, current increases as well...until the battery can't dissipate the extra heat being generated.

Makes for a nice little explosion.

 

[audiolife 5,000+ posts]

to take A1 care for a battery if it ever sets around for a little while week-weeks without being used in the car its very good practice to use a maintaining charger on them. thats why some batteries last longer than others even though they are "used more"

 

[fatryan 5,000+ posts]

Because if the regulator ever fails and starts providing too much voltage to the battery, you get a nice condition known as thermal runaway...voltage increases, current increases as well...until the battery can't dissipate the extra heat being generated.
Makes for a nice little explosion.

sweet

 

[Logikalliquid 10+ year member]

Wouldn't one of those 50F cap devices cost more than a high power alternator for a domestic truck? I've never quite understoof why those are around anyway, if they really did do what they are supposed to do the everyone would have them, right?