[Hsiu]

Which way is better for battery life?

There is also L1 but it takes way too long. so no considering.

 

[JNealCox]

By far L2 is the best for battery life.

 

[Hsiu]

Thank you,

Another question, normally I charge it when it down to ~55% and charge to 80%. shall I wait till it down to ~30% instead?

 

[Joe]

Yes, 20%-80% of the vehicle's displayed charge level is ideal. Doesn't affect battery life much if you go outside this range occasionally.

 

[Hsiu]

Got it. Thanks.