last hope: How to install AMP & externa regulator with out overcharging battery

[Remember_54 10+ year member]

Hello Guys,

Please help me... I really do not know what to do...

I have Hummer H3, I installed one more alternator 300amp with external voltage regulator with out touch factory alternator and battery...

So I have 1 alternator 300amp with external volt. regulator & two batteries each 100amp

Last time my alternator overcharged one of battery... so please advice does this regulator stop charging when battery is full??? if not what I need to do so alternator would stop charging when batteries are full

and how I need to connect my regulator with alternator and battery... maybe I connect it wrong.. ? if you have diagram or plane ?

I got this alternator http://www.caraudio.com/forum/showthread.php?t=363968

please help you are my last hope

thanks in advance

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[Remember_54 10+ year member]

Hello Guys,
Please help me... I really do not know what to do...

I have Hummer H3, I installed one more alternator 300amp with external voltage regulator with out touch factory alternator and battery...

So I have 1 alternator 300amp with external volt. regulator & two batteries each 100amp

Last time my alternator overcharged one of battery... so please advice does this regulator stop charging when battery is full??? if not what I need to do so alternator would stop charging when batteries are full

and how I need to connect my regulator with alternator and battery... maybe I connect it wrong.. ? if you have diagram or plane ?

I got this alternator http://www.caraudio.com/forum/showthread.php?t=363968

please help you are my last hope

thanks in advance

guys still not connected please anybody can help!!!!

 

[tommyk90 5,000+ posts]

So is this alternator already installed in your car?

If so, you can search on here or contact the seller for a wiring diagram for the external regulator.

Though I will say that you should have done some research before purchasing an alt with an external regulator.

 

[Remember_54 10+ year member]

So is this alternator already installed in your car?
If so, you can search on here or contact the seller for a wiring diagram for the external regulator.

Though I will say that you should have done some research before purchasing an alt with an external regulator.

seller are not responding //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif I make misstake to purchasing this alternator from him..

anyway it is done already //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif

I have hummer h3, and I did not touch factory alternator & et.c I just add this alternator and two batteries 100amp each, the problems is everything is working but it you regulator keep charging batteries even when they are full.. i need some sort of relay which will stop alternatro when batteries are charged..

 

[tommyk90 5,000+ posts]

The alternator shouldn't be overcharging the batteries unless the voltage is too high.

The alternator only provides as much current as demanded by the vehicle.

 

[loopkiller 10+ year member]

Chances are you should have bought a normally regulated alt. When a stock charging system senses that the batteries are full, it will step down to a float charge, usually around 13.2v ~ 13.6v. If the alt does not step down the charge rate and stays at the full rate of 14.4V (or higher), then you run the risk of overcharging the batteries, especially if the duration is more than 10 minutes. So by having an externally regulated alt, if the voltage is set and does not automatically adjust, you might want to set it lower if you plan on driving for more than 10 minutes. This should only be a consideration if the batteries are already fully charged to begin with.

 

[Remember_54 10+ year member]

Chances are you should have bought a normally regulated alt. When a stock charging system senses that the batteries are full, it will step down to a float charge, usually around 13.2v ~ 13.6v. If the alt does not step down the charge rate and stays at the full rate of 14.4V (or higher), then you run the risk of overcharging the batteries, especially if the duration is more than 10 minutes. So by having an externally regulated alt, if the voltage is set and does not automatically adjust, you might want to set it lower if you plan on driving for more than 10 minutes. This should only be a consideration if the batteries are already fully charged to begin with.

I`m sure it is way, to connect external regulator to some kind of relay so it will stop overcharging batteries avtomatically