Solved! I want to keep my phone without using for a while but am afraid that the battery will get weak because it's inbuilt

[etwopemmanuel2017]

Am Etwop Emmanuel Easter
Country Uganda

 

[hang-the-9]

What is not using for a while exactly? A few days? A few months? If a phone sits for too long, especially an older one, the battery could die. I am working on about 300 devices now that sat around for a few years and we need to toss a lot of batteries.