(Image credit: Sharge) I’m still working on my full review of this Sharge Retractable 3-in-1 Power Bank, but I can already say it’s the most stylish battery pack I’ve ever used, and the first power bank I’ve wanted to show off to people who aren’t battery geeks like me. Best of all, for Black Friday, Sharge is offering a 20% discount, bringing the price down to $39.90. • Shop Sharge’s full Black Friday sale Today’s best Sharge Retractable 3-in-1 Power...