Should I trust a company who's marketing team doesn't know the difference between a microcontroller and a microcomputer to build a battery charger that won't start a fire? Ok looking into it they are based in Shenzhen. I see that they are claiming CE marking. I'm pretty sure that since I'm not in Europe, what ever product that is being sold to me is not CE compliant. I'd want to see a UL testing or equivalent as well as an FCC 47 part 15 compliance before putting money down for this.
SillySpinnerIt should also be noted that without FCC compliance, this item is illegal to sell in the United States and runs risk of being confiscated at customs and incurring large fines for the seller.
glennacThe new egg item you listed is sold by https://www.newegg.com/VirVentures/about not new egg. Here's there direct store: https://virventures.com/. Not sure they are US based.
For battery junction "Every Order Ships Directly From The United States Authorized Dealer For All Products Sold."
This means that battery junction has no inventory and are acting as a marketplace these items are likely shipped from China.
If there is no FCC compliance (and labeling is a part of that compliance, and I'm not seeing FCC labeling) for items containing microcontrollers, these sales would also be illegal.