Is there any concern with charging from a quality, smart output chip included power bank?
I use an Anker Powercore II, 10,000 portable charger with the power cord supplied by Tandem and I’ve never had a problem. I’m sure there are even better models available by now. Anker is a dependable company.
Do it all the time. Much more convenient to charge that way while sitting in my office or on couch watching tv.