Voltage dropping to 12.8 at full tilt with 330 amp alt, four kinetik batts, four runs 0 guage , one optima up front.

[Basson50]

i believe he said 2 sundown 3500s strapped at 1 ohm.. he made another thread like 5 mins ago

No there strapped @2 ohms now , and I wanna strap at 1

[MrSkippyJ]

Either bad connections, more draw than available at idle, or a combination of both. It isn't really rocket science.

[Loslam]

If you have room under the hood get another alt before batteries imo

Edit: ^ in regards to your electrical question post

Edited April 3, 2012 by Loslam

[Basson50]

If you have room under the hood get another alt before batteries imo

Edit: ^ in regards to your electrical question post

One thing I wanna do is put two kinetik hc 800s upfront instead of the optima and maybe one more hc 2400 in the back in another two more runs of 0 guage.

[Loslam]

That would improve your battery bank, but you can only go so long drawing more than what you can produce.

Also causes more stress on alternator if it's at full output all the time trying to keep up = shorter alt life

[Slapuhho]

I would kill for 12.8 at idle..

[AA98hoe]

Step up to 14v and you will never drop into 12s unless you want too

[Ballen194]

12.8 full tilt at idle doesn't sound bad to me. Rev it a little if your worried.

[MECHMAN]

You are exceeding the available power from the alternator at idle. If your vehicle needs 40-80a just to operate at idle you do not have enough power to lean on it at idle.

This is why we don't recommend playing at idle, it will drop the voltage in your battery bank and add stress to the alternator from running at max output at low speeds.

Maintaining 12.8v with your system actually is good considering your vehicle and system will draw more than this alternator can produce at any speed.

[Sanitarium]

You are exceeding the available power from the alternator at idle. If your vehicle needs 40-80a just to operate at idle you do not have enough power to lean on it at idle.

This is why we don't recommend playing at idle, it will drop the voltage in your battery bank and add stress to the alternator from running at max output at low speeds.

Maintaining 12.8v with your system actually is good considering your vehicle and system will draw more than this alternator can produce at any speed.

This.

When i dropped my amps to 1/2 ohm and realized i was only dropping to 12.8v full tilt, i was actually happy. Don't get alarmed till you start dropping to 12.0 (turn it down)