Anker has a huge range of input speeds from the mini 1A input to the dual 2x2A 4A and QC input, and huge range of outputs from 1A to 2A to 2.4A, 3A, multiple outputs, QC.
What is your preference for speed in vs speed out?
My preference:
- I use USB batteries defensively, i.e. if I’m stationary I plug mine in to keep my gadget fully charged so when I’m moving I am not needing to keep it plugged.
- I thus do not particularly need a fast output USB battery because it is never expected to rush at anything.
- I favour more the power input of the USB battery because if I’m next to mains power for a short period, I want to ingest the most amount of energy, so I prefer 4A input, then 3A input, then 2.4A input then 2A input.
- I’d rather a battery be smaller to fit in a pocket, or lighter to be easier on the back/shoulder/arm than its speed of output.