Amazon is currently offering Amazon Prime members a Romoss 40,000mAh USB Type-C Power Bank with 18W of USB Power Delivery for only $23.99 after you clip a 50% off coupon on the product page. Non-Prime members can get it for $29.99. That’s an excellent price for a pretty massive 40,000mAh power bank that’s also equipped with a USB Type-C output with 18W of Power Delivery, which is the ideal wattage for charging your Nintendo Switch gaming handheld.
Romoss 40,000mAh USB Type-C Power Bank for $23.99
Amazon Prime members only ($29.99 for non-Prime members)
The Romoss 40,000mAh power bank has a larger capacity than most portable battery backups we’ve seen. The tradeoff is its size; it’s a pretty hefty device, measuring in at 6.7 x 3.2 x 1.7 inches and weighing in at 2 pounds. It’s important to note that the Romoss can’t be brought onto the plane as carry-on. The maximum cutoff is 27,000mAh and 100Wh, whereas this powerbank is 40,000mAh and 148Wh. A smaller 10K mAh power bank might be a better choice as a daily driver or airplane travel, however the extra battery capacity is useful for when you don’t have access to a power outlet for longer periods of time.
There are four total ports: one USB Type-A input, one USB Type-C input/output, and two USB Type-A outputs. The maximum amount of Power Delivery is 18W via USB Type-C, which also happens to be the max charging speed for the Nintendo Switch. The Steam Deck, on the other hand, supports a max of 38W and the ASUS ROG Ally even higher at 65W. If you want the most efficient charging for those gaming systems, there are better (and more expensive) options. If you’re not in a rush, though, this power bank can still charge up all three without a problem, it will just take a little onger.
It’s important to note that technically, the Romoss can’t be brought onto the plane as carry-on. The maximum cutoff is 27,000mAh and 100Wh, whereas this powerbank is 40,000mAh and 148Wh.
For more options, check out our picks for the best powerbanks of 2024.
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