427Impala

2006 GT conv (if that matters, 83K miles, very nice shape), driving home, after 2 miles the 'volt gauge' needle bounces some, heads to the low side, ABS, Trac Cont lights come on, red battery comes on, radio turns itself off.
I stopped by a friends house to get towed home to be safe.
Once home, it starts with Jump Pak, only 13.2 v across terminals.

Thoughts?? I will borrow a friends code tool, but if anyone has thoughts now, I am open. Yes this dang thing has the battery drain issue, but I keep a Battery Tender on it.

Thnx

jz

If it happened while driving, I would lean towards the alternator being the issue. How old is the battery? Running a battery dead is a sure fire way to shorten the life span so depending on the age, you may want to consider a new battery. But most shops can do a load test on the battery and give you a yes or no for the battery health.

Dino Dino Bambino

Sounds like your alternator is failing. However you also need to solve the battery drain problem. The Shaker 500 ICE system is a common cause so if you have it, you might contemplate ditching it for another system.

Derf00

13.2 with the car running? If so, that with the wonky electrical show usually means alternator.