A power bank is an essential purchase for anyone who wants to keep gaming on the go. Finding an available power outlet in the wild is never a guarantee, and a power bank will let you extend the battery life of your device, whether its a phone, tablet, laptop, or a handheld like a Nintendo Switch, Steam Deck, or Asus ROG Ally.With countless options available, it can be tough to know which to buy especially since everyones needs are a bit different. But weve found three great power banks, each of which has a unique set of strengths and all of which are approved by the Federal Aviation Administration to accompany you on a passenger plane. So whether your priority is price, speed, charging capacity, or size, weve got all the bases covered.Best compact battery for Switch and phonesBest power bank for Steam DeckBest battery for powerful laptopsA great USB-C cable for your power bank