A fast power bank that conveniently comes with its own cable? Yes please! Especially now that it's 50% off on Amazon.

There's a big Anker sale on Amazon that covers several well-regarded power banks and charging accessories. This includes the 737 portable laptop charger, which is just $88. That's the best deal of the bunch,

Overcharging, overheating or even hidden manufacturing flaws can trigger a dangerous chain reaction in a lithium-ion battery known as thermal runaway, causing its internal temperature to rise.