When to start worrying?

[Charbel Bernaba]

 I installed today my second amplifier the jlxd600 watts and i originally had the xd400 4 channel amplifier for my door speakers. Im running on stock alternator which is 100 amp. I checked my voltaged and it dropped from 14.6 to 13.4 and it stayed there. Is this normal? or it's time for a big alternator?

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[Popwarhomie 5,000+ posts]

You are fine.

 

[Charbel Bernaba]

You are fine.

If im fine as you are saying why my interior dome lights are very slightly dimming? 

 

[Popwarhomie 5,000+ posts]

Because lights are sensitive to voltage drop.

 

[Charbel Bernaba]

Because lights are sensitive to voltage drop.

But if i keep my voltages above 12? i wont burn anything in the electronics of the car in the long terms?

 

[Popwarhomie 5,000+ posts]

Nope. I can drop to mid 11s if I try with 6 batteries and an HO alt. Car has been 100% reliable for 8 years of beating on the electrical system.

 

[Charbel Bernaba]

Nope. I can drop to mid 11s if I try with 6 batteries and an HO alt. Car has been 100% reliable for 8 years of beating on the electrical system.

Somebody here recommended me the stinger voltemeter. i just order it. ill get it installed when it arrives. but i heard theres 1 problem with those voltemeters they are not fast to catch a voltage drop

 

[Popwarhomie 5,000+ posts]

The Stingers work fine.

 

[Charbel Bernaba]

The Stingers work fine.

View attachment 5299

woah jesus of brightness

 

[Popwarhomie 5,000+ posts]

They are very bright. A piece of tint over it helps alot.

 

[Charbel Bernaba]

They are very bright. A piece of tint over it helps alot.

Btw what does it means when i drop from 14.6 to 13.4? is that mean im using the battery? or im still using the capacitor power?

 

[Popwarhomie 5,000+ posts]

Your using your alternator. If you drop below battery resting voltage (12.5 ish) you are then using the battery and your alternator isn't keeping up.

 

[Charbel Bernaba]

Your using your alternator. If you drop below battery resting voltage (12.5 ish) you are then using the battery and your alternator isn't keeping up.

The only problem im facing right now. Is i need somebody to install the stringer voltmeter when it gets here. i know it's easy but im that stupid when it comes to cars and electronics

 

[Popwarhomie 5,000+ posts]

3 wires. Ground, remote, and positive. One of the most simple things you could install.

 

[Jeffdachef 5,000+ posts]

Btw what does it means when i drop from 14.6 to 13.4? is that mean im using the battery? or im still using the capacitor power?

its alternator power, you are completely fine.