- Got home, MM on battery. 12.1
- Cranked just fine, took it for a drive around the block - I know, not really good as a alternator test. Anyhow, 13.3-13.6
- Grabbed my standby battery. AGM. On trickle charger every now and then. I though this battery was in good shape. Before swapping batteries, measure V on it. Last time trickle charged was about 2 weeks ago. Dang standby battery was reading 12.2. It's a 3-4 oldish AGM that's get's trickled charges. I've never really measured the V on this - while in storage/and of when off trickle charger. I do know a healthy AGM of this one generally will hover around 12.8+

Anyhow, swapped batteries. Took existing battery and decided to just bench charge it, let it rest and see how it looks in the morning. AFAIK, no alt. lights on the cluster - not that that alt cluster error light always comes in - last alt job, I don't recall it every triggering on the cluster.

Regardless, if the ALT was healthy, even with a bad battery, voltages should not have dipped ? aka, I suppose it's possible the current was more than the alt and V dipped when it needed battery juice , which triggered the trans safe ?

Baby steps I suppose.

And as luck goes, I'm on month 38 out of a 36 month warranty battery