This article will explain everything you need to consider when buying a USB charger, so you can get exactly what you need. For real-world examples, check out our round-ups of the best portable laptop battery chargers and portable solar chargers.
I've tested $1500 worth of battery banks – these are my top 5
Just as portable gadgets come in all shapes and sizes, portable batteries also come in different capacities.
A small charging stick might have 2,000 mAh (milliamp hours) of battery power, but there are also heavy-duty mobile chargers that can hold over 20,000 mAh of battery power.
Here are some questions to answer when choosing the right charger:
