Today, Amazon is offering the powerful and high capacity Anker Prime 20,000mAh USB Power Bank for $99.99, a 23% price drop from its original $130 MSRP. This is the successor to the Anker 737 that we deemed one of the best Steam Deck and ASUS ROG Ally chargers. It boasts an absolutely massive 200W of USB power delivery to charge all of your mobile devices simultaneously.
with 200W of USB Type-C Power Delivery
The Anker Prime can be used like any other power bank; it does a fine job of charging any of your standard mobile electronics. However, its main purpose is to charge more power hungry devices like laptops, portable gaming systems, and high end phones. It has two USB Type-C ports and one USB Type-A port. Each USB Type C port supports up to 100W of Power Delivery. In fact, both ports can charge 100W at the same time. If you want to charge using all three ports simultaneously, then the power distribution will be 100W (Type C), 60W (Type-C) and 40W (Type-A). It’s also under TSA’s 27,000mAh limit so it can be brought onto airplanes.
What makes the Prime unique compared to most other power banks is the LCD digital readout which displays a lot of useful real-time information like remaining battery capacity, power input, and power output from each port. The power bank measures 5″x2″x2″ and weighs in at 1.2 pounds.
The Anker Prime is an outstanding charger for handheld gaming consoles like the Steam Deck, ROG Ally, and Switch. Both the ROG Ally and Steam Deck suffer from a short battery life when gaming on the go. During our Steam Deck review, we found games like God of War or Spider-Man would tap out in under 2 hours. At the end of the day, you’ll never get the full potential out of your Steam Deck or ROG Ally if you’re not equipped with a decent portable charger. The Steam Deck accepts up to 38W of USB Power Delivery, ASUS ROG Ally accepts up to 65W, and the Nintendo Switch up to 18W. That means the Anker Prime can theoretically charge a Steam Deck, ASUS ROG Ally, and Nintendo Switch at their maximum charging rate all at the same time. In real world applications however, most power banks thermally throttle themselves from the excess heat generated when they are forced to charge at the max wattage for a long time.
Looking for a smaller, less expensive power bank? Check out the best power banks of 2024.