Battery health

I read a newer article, there they said, that perhaps there could also be something like the memory effect with Li-Ion batteries and therefore you should charge your phone at different battery states e.g sometimes at 70% or 40% and so on.

If you're leaving your phone charging the whole night the battery management stops charging at 100% but at some point maybe 98 or 97% it starts charging again without needing, so the battery capacity sinks with every charging cycle a bit and in result you can get the result of LVPVS I think, but obviously it's only my opinion ;-)

@drummer12: You are right, but only if lithium iron phosphate is used (which is mostly used in electric cars) and the effect is minimal . In mobile phones other materials are used which do not show memory effects, according to this article (unfortunately in german): Memory-Effekt bei Lithium-Ionen-Akkus. However, I also found the hint to disconnect the device, if fully charged in order to prolong life (also in German): Zehn Fakten, die Sie über Lithium-Ionen-Akkus wissen sollten

Thanks for clarifying this, thought it is also the case on "normal Li-Ion battery". Thanks for the articles, true luck that I'm able to read german ;-)

Thank you, drummer12. I think I failed with your last point. I will need to revise my habit of charging the phone. LVPVS

me too i let it sometimes charge all the night , what is wrong with that ?

The hints you are reporting should be for NiCd or NiMH batteries. As far as I know, Li-ion batteries simply need to be charged whenever you can. Taking them to low charge levels shortens their life (or better, keeping them in high charge levels extends their life). You can safely keep them plugged in the whole night since the phone will stop charging the battery as soon as it's full.

Link: Memory Effect detected - Li-Ion Battery In case of Li-Ion with Iron and Phosphore. Also the life time of an usual Li-Ion-battery is expressed in charging cycles, so scientist say a usual battery will "live" around 500-800 Charging cycles. If you always charge the batterys' capacity is getting lower. Or why do you think, that after 2 years normally you have to change your battery because you need to charge it more often?

The capacity is expressed in full charging cycles, that is, 500 full charges or 2000 1/4 capacity charges. The number of such full charging cycles increases if you prevent the battery from going too low in charge (or, seeing it another way, every time you let your battery discharge too much you eat up a small bit of its capacity).

Now this is really interesting. My rule of thumb has always been not to recharge if not nearly empty and not to fully discharge. Even though Li-ion batteries are said not to be sensitive to the so called "memory effect", I have always tried to act on this rule and so far my batteries are still healthy.

Your post puts a number to my vague description of nearly empty. Thank you! :-)

Strange as it may sound, but I recently checked the health of my battery with CSD tool and it showed 93%... Probably it depends on a lot of conditions, like temperatures, SoC and such...

Yes, the capacity vary: My battery-capacity has raised up from 69.28% to 73.96%. Is there more? ;)

Can someone -officially- confirm tips for prolongation of battery life? Please! I was told today about the no-charging-the-entire-night thing... Never thought it mattered.

Hej, I was also charging my phone(s, not only Jolla, but all) the whole night. After getting some suggestions here, I took a deep breath and changed my habit. I bought a timer switch, set a time frame of one and a half hours on it. I keep my charger connected to it. I still connect my Jolla to the charger when getting to bed, but this time the phone is only being charged during that set time frame. This change in my charging habit resulted in 4-5% improvement in my battery's condition. Formerly below 89% to now over 93%.

I tested my phone battery with CSD tool and the capacity just keeps dropping, 0.3 per cent in last week (now it is at 88,61 per cent). Additonally, I tested the "Battery resistance" with the same tool and it reported FAIL. Is the battery going bad or do others get the same results with the tool? I have to warn that you probably have to reboot the phone after testing the resistance. My phone does not find the mobile network after testing. Testing also takes a while as it collects 31 samples.