I tested the Anker PowerCore Essential 20000 and it’s good for charging smaller devices but capable of little else

The Anker PowerCore Essential 20000 is a power bank designed for charging smartphones and other smaller devices multiple ...
Consumer Reports

Anker PowerCore 3 Sense 20,000mAh Portable Charger

Unlock to see our ratings and compare products side by side This Anker charger has a claimed capacity of 20000 mAh, LEDs that show battery status, and it can charge 3 devices simultaneously. It offers ...