18 Best Portable Battery Chargers (2024): For Phones, iPads, Laptops, and More

There are a few things worth thinking about when you’re shopping for a portable charger.Capacity: The capacity of a power bank is measured in milliampere-hours (mAh), but this can be a little misleading because the amount of power you get out depends on the cable you use, the device you are charging, and the charging method (Qi wireless charging is less efficient). You will never get the…