I saw this bundle on Anker that looked tempting...$50 seems like a good deal. So my question is, should I go for that for $50, or go for a power-bank and similar stuff from Anker for $100, or go with a bigger capacity, smaller in size, but Aukey-branded power-bank and similar stuff from Anker also for $100? I'm not sure what to do. I'll need to power an Nintendo Switch, Galaxy S8+, and iPad Pro.