Charge and battery health

[neririn]

With my ICE F-150 I would always keep the fuel tank above half full in the event of emergency or immediate need. Only drawing it down low on long trips.

I find with my lightning that my daily driving takes me to a lot of businesses that have free charging stations out front. I have taken to plugging in whenever that is available and it has resulted in, for the most part, my battery consistently remaining between a 60% and 80% state of charge at all times.

Is that bad for the long-term health?

Whenever the power goes out I want to make sure I have as much juice in the battery as possible to run my home. If I decide to go on a quick road trip I want to have as much juice in the battery as possible to prevent significant charging time on the road.

Yet if I’m taking months or even years off the life expectancy of my battery by only drawing it down to 60% and then immediately sending it back up to 80% that’s obviously not good.

Thoughts?

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[sotek2345]

With my ICE F-150 I would always keep the fuel tank above half full in the event of emergency or immediate need. Only drawing it down low on long trips.

I find with my lightning that my daily driving takes me to a lot of businesses that have free charging stations out front. I have taken to plugging in whenever that is available and it has resulted in, for the most part, my battery consistently remaining between a 60% and 80% state of charge at all times.

Is that bad for the long-term health?

Whenever the power goes out I want to make sure I have as much juice in the battery as possible to run my home. If I decide to go on a quick road trip I want to have as much juice in the battery as possible to prevent significant charging time on the road.

Yet if I’m taking months or even years off the life expectancy of my battery by only drawing it down to 60% and then immediately sending it back up to 80% that’s obviously not good.

Thoughts?

That is perfectly fine. Don't let the battery sit close to 100% or 0% for any extended duration (few hours OK, few days bad) and you are fine. Our Mach-e lives almost all of its life between 60% and 90%. Being plugged in also lets the truck heat/cool the battery using shore power as needed which helps reserve battery health.

All part of the ABCs of EV life - always be charging.

 

[SteffanG]

Look up posts from MickeyAO - he has posted many things on battery health and is a very good source of info on them.

 

[Roy2001]

As long as you don't let it with <15% and not >90% for long period, it is fine.

Try to only charge it to 100% right before you leave.

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