Battery range dropping fast

[alohart]

If you know roughly when it'll reach your desired charge level can you not just set the appropriate charge window in the app?

I don't think that this would work because the i3's charge window algorithm emphasizes reaching a full charge by the departure time even if this means starting charging prior to the start of the charge window and/or ending charging after the end of the charge window. This behavior has frustrated i3 owners whose priority is to charge only during the presumably low-cost charge window.

 

[drcarrera]

I don't think that this would work because the i3's charge window algorithm emphasizes reaching a full charge by the departure time even if this means starting charging prior to the start of the charge window and/or ending charging after the end of the charge window. This behavior has frustrated i3 owners whose priority is to charge only during the presumably low-cost charge window.

I set my departure time 5-7 days in the future and then it works fine, although of course this means changing it every couple of days if you're charging regularly. A bigger frustration for me is only having one charging window as we have three cheap periods on our tariff.

 

[DuploCar]

Best practice seems to depend on battery type
NMC vs LFP
According to this YouTube based on scientific sources (se at the bottom)

In short:
Best practice for the NMC is to charge often and keep charge between 75%
Only charge to 100% when needed, try and use it as soon as it is finished charging.

Caveat: I dont know the battery type from 1014-2017. In 2018 it should be an NMC.


Video sources:
NMC Edition


His sceintific sources:
Lithium Ion Degradation:
- https://pubs.rsc.org/en/content/artic...

Li-Ion Life Cycle Study:
- https://www.sciencedirect.com/science...

Dr. Jeff Dahn:
- https://www.dal.ca/diff/dahn/people/j...