I already have a 10000mAh from Poweradd and find it useful to keep my mobile devices charged when I'm out and about but for long journeys the 10000mAh is sometimes not enough but I've always avoided larger capacity power banks as they were too bulky and heavy, When I saw this 20000mAh power bank from Poweradd which appeared to be smaller and lighter than the normal ones with that capacity I thought that I'd try it.
The power bank comes in a plain cardboard box along with a user manual, USB C to USB C cable with a USB C to USB converter attached and a storage pouch. The power bank has a hard plastic outer shell with an scratch resistant matt finish, measures 16.6 x 6.3 x 2.4 cm and weighs 346gm so it's not too big for a large pocket but I think this will be more convenient to carry in a handbag, backpack, briefcase etc.
This power bank has 2 x USB ports for charging and 1 x USB type C port for receiving a charge and for giving a charge, with the right charger, it states that this power bank can be fully recharged in 5 hours, There is a circular LED power meter on the top of the power bank the circle is made up of 4 sections and each section, when lit represents a 25% charge so it's easy to see the current state of charge when you press the power meter button.
This comparatively small power bank with a high capacity is great for charging larger devices as well as phones, Bluetooth speakers / headphones etc and I find a great compromise between size and power. To see this Poweradd 20000mAh PD Power Bank on Amazon use this link:-