Some portable chargers can power your devices faster than others. This is largely determined by the kinds of ports the charger is equipped with and their max wattage output.
Take a look at the port options on different models when shopping. Portable chargers are usually outfitted with USB-C ports and USB-A ports, which both can be rated for different wattage outputs. USB PD, (or USB Power Delivery), for example, is a type of fast-charging via USB-C that can deliver up to 240 watts. Some more powerful portable chargers also have 100-watt AC outputs, allowing you to insert a standard two- or three-pronged plug.
For speedy laptop charging, you likely want a portable charger capable of outputting 100 watts of power or more, while around 18 watts or more could provide fast charging to a phone.
Most models in our ratings get excellent scores for charging speed, but a few power banks have more middling scores. Of course, once the portable charger is drained, you need to recharge it at an outlet or a portable power station. Most models in our ratings recharge quickly, but there were some underperformers (along with a few particularly good models). Unsurprisingly, solar portable chargers, like the BioLite Foldable 10 watt Solar panel, take far longer to recharge if you’re only relying on sunlight.
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