2019 tundra, appropriate voltage?

Hello i was wondering what is the appropriate voltage for 2.5 gen tundras?

Sitting volts show 12.6, when engine on 13.6.

Is my alternator/ charging system ok?

Reason i ask i put a new battery on my tundra ever since i reversed connected my battery during a charge.

 

Those numbers are exactly what I get and they are normal. You are good to go.

 

Thanks!

 

Same here. 12.6v resting says the battery is good. 12.2 says it's on its way out. Under 12v resting and you've got issues.

 

I just replaced my alternator in my 2020 and get those with the new one, factory Denso.