This Anker 5K magnetic power bank is only $20 in the Amazon Spring Sale

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . The Anker 321 MagGo power bank has been discounted to $20 as part of the Amazon Spring Sale. This is a record low price and represents a discount of 23 percent. A whole bunch of colorways are on sale here, including white, black, pink, green and purple. Anker products are all over our list of the best power banks and portable chargers, so this device is in good company. The 321 MagGo is, as the name suggests, a magnetic power bank that snaps onto the back of smartphones. It works with cases, so long as the case is magnetic. Inside, there’s a 5,000mAh battery that provides up to 19 hours of additional use for modern iPhones. It’s equipped with heat sensors that continuously monitor temperatures to avoid accidental damage and it can juice up a phone while it’s being charged i ... Read full article.