iPhone froze while recharging

I did the repair to replace the battery and the iPhone immediately thereafter worked fine. Made calls, answered calls. Sent and received emails. Browsed the web. Ran the phone down to less than 10% per the instructions. Then started to recharge using the iPhone charger.

After 13 hours, the phone bizarrely indicated that the charge level was either 0% or 60%. It was also frozen as it would not turn on and could not reset and could not be rebooted.

Any thoughts?