I just got Inland USB-A 5,200mAh Power Bank w/ LED Indicators for my android phone. It has a one-year warrantee, which seems to tell that its battery might degrade significantly after one year of uses.
The power bank came fully charged. I don't have a plan of using it sometime soon, except for something unexpectedly, and will just set it aside for weeks or even months. I was wondering how to slow down battery degradation as much as possible?
In what percentage of charge shall I leave it, when I set it aside? Emptily, fully charged, or somewhere between?
Does its battery degradation depend on how many times it has been discharged and then charged, and how often it has been ?