1998 Regal electrical issue?

[SkeletonBuddy11]

Two weeks ago I went outside to start my car and upon turning the key all electrical systems shut off and I couldn't get the key out of the ignition. I thought it might be the battery so I tried jumping it and still nothing, after a few minutes (jumpers disconnected) everything came back randomly and I could get the key out again and the car started and ran fine.

Yesterday, the same issue, eventually came back and I drove it where I needed to go but when I went to leave upon starting the car the ABS light came on and a whirring noise would be heard anytime I accelerated. I also noticed the dash lights flickering more the further I pressed the gas pedal.

I just got done testing the alternator and battery
Battery when car was off read about 11.92 (I hadn't driven the car in 2 weeks so that might have something to do with it)

Battery when car was running: 14.5-14.6, with it dipping slightly when I turned on a bunch of things.

I also did a voltage drop test and the reading was 0.06.

Is it safe to assume the alternator isn't the issue?

 

[02LTD2.0]

The alternator is not the issue but your battery may be going bad. Have it load tested. AutoZone or O'Reilly's do it for free.

 

[strider]

Battery when car was off read about 11.92

Disconnect battery and measure it again. This is very low. Also charge it

 

[HotZ28]

Disconnect battery and measure it again. This is very low. Also charge it

Hopefully, the OP did that 2-months ago, or otherwise he would be without that car to drive with a dead battery.