Hello I am new to the hobby of making 18650 battery packs and from the knowledge people in this forum have about battery related topics I have learned alot.
My problem
I have salvaged a couple of 18650 cells and I charged them to 4.1 and discharged them to 3.0 and I charge the cells one at a time. Everything worked ok the first time but the second time I tried to discharge from 4.1-3.0 the end voltage was 3.14 on the cell and after a day it raised to 3.6 why is this happening?
English is not my first language so I am sorry if its hard to understand the text
My problem
I have salvaged a couple of 18650 cells and I charged them to 4.1 and discharged them to 3.0 and I charge the cells one at a time. Everything worked ok the first time but the second time I tried to discharge from 4.1-3.0 the end voltage was 3.14 on the cell and after a day it raised to 3.6 why is this happening?
English is not my first language so I am sorry if its hard to understand the text