If the volts are still 11.2 we definitely not charging, we need to be 14.2 and above with all loads on .
1- was the alternator new ?
2- Can we check the battery , but under load , out of the car or you can disconnect both battery cables and test where it sits , but you need a load tester ?
3- If a alternator is good and still not charging
1- we either have a defective alternator but yours is new , unless you got a bad new one
4- the battery is not taking a charge , needs replacement if the under load test failed
5- or we missing a ground on the alternator , did you replace it yourself , can you check the ground wire on it ?
Please let me know
Chad Farhat ( aka -Customer)
ASE Certified Tech