Guys, would it be better for batteries if I stop using the device at battery vibration = 1, instead of charging only after the device forces the shut down? Thinking about the same principle as Li-ion batteries from smartphones, although I reckon that our batteries won't reach a complete drain cycle the same as smartphone ones going from 100-0%.
Lithium ion batteries do not have the so called memory effect that one had with earlier nickel cadmium cells.
That said, there is some thought that charging lithium ion batteries to 80% of their state of charge (SOC, essentially capacity) will prolong their life.
I have an app on my smart phone that lets me know when I am at 80 percent. However, the app is not perfect....and I don't always stop the charging in time.
With a Note 9 phone, it makes sense to try and prolong battery life since it is a pain to change the battery. (It cost around 70 dollars where I live to get someone else to do it.).
But with the TM and the fact that we can change the cell out easily and because it uses a resistance coil which requires a fair amount of amperage, personally, I fully charge the cells I use....either in the device or in the case where I keep my TM.
Now, if you happen to keep/use a lot of lithium ion type batteries....they are best stored at less than there full SOS.
I think the storage voltage is 3.8 volts. It may be different for RC lithium batteries. I forget.
But, practically speaking, I would just fully charge your TM and use a good quality, high drain...25 or 30 and be done with it.