Search “power bank” on Amazon and you'll get more than 40,000 results, ranging from well-known brands like Anker and Belkin to obscure brand names with zero product reviews. While many items on Amazon are safe and legitimate, you do need to be aware of the risks when you're shopping. Amazon keeps a better eye on its own inventory than it does on items sold by third-party sellers. How to Only See Items Sold by Amazon.com:AmazonIf you’re browsing through Amazon listings, filter the site’s search results to only show items sold by Amazon.com. It will likely improve the quality of the items you see, cutting out a lot of less-relevant, lower-quality search results.