Hi, I'm a new 2021 Outlander PHEV owner. Can we safely use the 12 amp button on the OEM granny charger in the U.S. on a 5-15 NEMA outlet? This charger has a standard 5-15 NEMA plug on it, suggesting that it is okay to plug this charger into a regular U.S. 120 volt outlet and it says nothing...