We feature a lot of smaller MagSafe battery pack deals here on iDB, and they are great for charging your iPhone or AirPods, but what if you need a beefier portable charger for larger devices like laptops and tablets? That's where the Anker 737 Power Bank comes into play. Considered by many to be one of the best battery packs money can buy, the 737 features a massive 24000mAh capacity, up to 140W charging power, and 3 USB ports. It also has a built-in smart digital display, a 2-year warranty, and right now it's 40% off.