Battery is not as charged as it was when I was NPI

sn95jones · Mar 30, 2013

I've noticed that the car has a harder time starting due to the fact that my battery isn't as charged as it was when I was NPI does the PI motor draw more juice from the battery? I mean it's not a expensive battery it doesn't even have a brand name on it haha. My battery gauge shows im between the O on NORMAL.
What gives?

Sent from my SGH-T989 using Tapatalk 2

Slykin · Mar 30, 2013

Is the alternator off of the PI or the NPI?

sn95jones · Mar 31, 2013

Slykin said:
Is the alternator off of the PI or the NPI?

The NPI motor

Sent from my SGH-T989 using Tapatalk 2

Slykin · Mar 31, 2013

sn95jones said:
The NPI motor

Sent from my SGH-T989 using Tapatalk 2

Hmm, they're supposed to be the same alternator. Only thing I can think of is that you have a bad ground somewhere or the alternator randomly decided to konk out.

sn95jones · Mar 31, 2013

Slykin said:
Hmm, they're supposed to be the same alternator. Only thing I can think of is that you have a bad ground somewhere or the alternator randomly decided to konk out.

It's been like this since the swap, battery hasn't died yet and it hasn't dropped any more

Sent from my SGH-T989 using Tapatalk 2

Slykin · Mar 31, 2013

Then I got nothing, i'm not very electronics savvy.

sn95jones · Mar 31, 2013

You and me both man!

Sent from my SGH-T989 using Tapatalk 2

Twista · Mar 31, 2013

ttocs loves issues like this i think lol:

CC'S95GT · Mar 31, 2013

what is the alt puting out? Should be about 14.5 vdc at any RPM.

It might also be a loose or corroded cable on the starter or at the battery

joekd · Mar 31, 2013

^exactly. Either one of your cables or terminals needs attention or it is simply your battery or alt deciding it is time to go. Start with the terminals since they are the easiest. I assume you disconnected the battery during your swap, maybe they just aren't tight.

1st thing to check, get the actual volts using a multimeter before starting and at idle. This way you can narrow it down to battery itself or charging. The dash gauge is barely any better then a dummy light.

Raffaelli · Mar 31, 2013

Check the charging voltage. Over 13.0 the don't even worry about it.

Your relying on the crappie at guages ever made. Measure and check!

sn95jones · Mar 31, 2013

Well I do know it starts slower, so it's definitely not my gauges

Sent from my SGH-T989 using Tapatalk 2

joekd · Mar 31, 2013

Use a multimeter, not seat of your pants. They are free at harbor freight with the coupon and any purchase. Just buy a roll of electrical tape and you have a free meter that's perfect for checking this at the alt and at the battery.