Hi...
Just trying to look at the doors of the knowledge of batteries. I began to use "logview studio" to check what is happend during the charge of my RC lipo´s. And I notice that the voltage current make a strange change in the curve from 4.05V to 4.1V cell voltage, during the constant current charging fase. Looking the curve it´s like inside the cell they are two batteries in serie (like two different chemistry), and from 3.70V to 4.10v is charging the first one, and at 4.10 begin the another one.
Someone can explain for a dummy what is the reason for this? if they are one...
It´s normal on all Lipo´s or maybe only in the brand that I have?
Thanks
From the attached graph, it´s the charge of a 3S Lipo. The upper blue line is the total battery voltage. Red line is the current. Next green line is the capacity.
And at the bottom, three lines together of the voltage of each individual cell.
[Edit] Interesting too the peak in the voltage at 3.85V. Like it´s a point with more activity. I see interesting beacouse 3.85 it´s the recomended value for "storage" a LIPO.