Just tested my battery

[AllenH427 10+ year member]

About a year ago, I bought a fairly beefy battery: Here

I just tested it and when the car is off, I'm hitting about 10.2V, and when it's on, I'm at 11.8V... I was thinking about getting the Audioque 1200D, but they are rated at 1200 at 14.4V. How much of a hit will the amp take from my weak electrical? Also, I haven't done the big 3 and I'm running on stock alt... which on it says 12V, so I'm guessing that's the output.

Edit* I've read people saying the Sundown SAE-1200D runs 1200 at 12.8V, where are people finding these amps so cheap ~200 and is it comparable to the Audioque 1200D?

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[MakeshiftAudio 10+ year member]

O.O

Something is not right.

 

[terra 5,000+ posts]

dying alt?

 

[AllenH427 10+ year member]

Well, I tested my car on, without reving the engine, and I didn't even let it sit for about 15 seconds and I tested it if that makes any difference?

 

[Toxic_Acoustiks 10+ year member]

dying alt?

X2

 

[ARSkemp 10+ year member]

Even with an extremely crappy electrical, if you turn your car on and not using any accessories/playing audio, you should easily be over 13 volts, or there's a problem somewhere...

 

[AllenH427 10+ year member]

Hmm, I may have to check this again. The deck wasn't even connected so nothing was running. But when I roll 1 window up, it's all good, then when I roll 2 windows up at the same time, they are significantly slower...

 

[Ace_Protege 10+ year member]

if you can easily take off the alt take it to autozone and have them test it.

 

[AllenH427 10+ year member]

Ok, I don't know if this is possible, but I just tested a 9V battery fresh from an unsealed box and it read at 7.5V. So I'm guessing the meter is dying out and is measuring 1.5V less, can this happen? If that's the case, I'm a happy camper at 13.5V.

 

[gotparts90 10+ year member]

I would double check before that amp explodes from low voltage.