Ideal charge percent to keep the truck at for daily driving?

[Dvldogg05]

I charge mine to 70% and set it to 25a. I set my charge start time to midnight and leave it plugged it. Doesnt get driven much but I like it ready if needed.

Why do you lower your amps?

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[igs]

So you set your Teslas to 30%?

I leave it at 30% and charge up to what I need right before departure.

 

[CyberGus]

I charge mine to 70% and set it to 25a. I set my charge start time to midnight and leave it plugged it. Doesnt get driven much but I like it ready if needed.

Best charging efficiency is achieved at the highest amperage. There's no benefit to lower amps, even at the max 48A it is charging slowly. Supercharging can be 20x more power than L2 charging so I wouldn't worry about A/C amps.

 

[Netwizzerd]

Doing top-up charging every night to 60-80%, even after your day's worth of driving might only get you down to 45-60% SOC seems ok I suppose if the objective is to constantly maintain a SOC reserve that you never really dip in to.
Consider this, though....Does anyone charge up to 60-80%, and then just wait until they are down to 20-25% SOC before charging again, even if that might be 3-4 days later?
Has Tesla issued any official guidance that would indicate this is somehow "bad" for the battery, or might reduce its lifespan?

 

[Polen]

I charge to 60% daily and my drive for the day takes me down to 45 or 50%. I also charge at 24 A and I charge the model Y at 16 A, the higher the amps the more heat on the house wires which is inefficient. Now, if I was driving over 100 miles a day I would probably have it at 48 A.

 

[rudedawg78]

the higher the amps the more heat on the house wires which is inefficient.

Are you sure? My electrician stated the wiring they just installed are rated at pretty high amperage and told me that its more efficient to charge with higher amperage than lower more long term charging.

I think as long as your wiring between the breaker and the wall connector is rated for the amperage you want to push out.

 

[CyberGus]

Doing top-up charging every night to 60-80%, even after your day's worth of driving might only get you down to 45-60% SOC seems ok I suppose if the objective is to constantly maintain a SOC reserve that you never really dip in to.
Consider this, though....Does anyone charge up to 60-80%, and then just wait until they are down to 20-25% SOC before charging again, even if that might be 3-4 days later?
Has Tesla issued any official guidance that would indicate this is somehow "bad" for the battery, or might reduce its lifespan?

Generally speaking the cells prefer a lower Depth of Discharge (DoD) between charges, which means it's better to charge 10% a day than 30% every three days.

Tesla's guidance is that you should plug in every day.

That said, I was initially charging to 80%-90% twice a week, because I was awaiting a WC install and was forced to Supercharge temporarily. Now I only need to walk 3 feet to plug in, so it's no big deal to do it every day.

 

[Cyberus]

I may be doing it wrong, but I never let the CT sleep. I leave on cabin temp and sentry. I use a lot of battery even without driving. I supercharge to 90% once a week and plug in to a 120 every night for 12 hours. Once the battery drops below 50%, I’ll hit the supercharger again to 90%, which like I mentioned is about once every 5-7 days.

 

[AlmostHuman]

Tesla never recommended always going to 90% or 80%. Those are the recommended MAXIMUM you should charge to.

30% is the ideal percent.

 

[Zoomit]

Here's a more relevant quote from Tesla:

"To maintain service life, the battery pack should be stored at a state of charge (SOC) of 15 to 50%."

CT EPA application, page 13: https://dis.epa.gov/otaqpub/display_file.jsp?docid=58898&flag=1

 

[igs]

It only says that when you try to charge above 80%. When you set it below 80% does it say that? No!

 

[AlmostHuman]

Here's a more relevant quote from Tesla:

"To maintain service life, the battery pack should be stored at a state of charge (SOC) of 15 to 50%."

CT EPA application, page 13: https://dis.epa.gov/otaqpub/display_file.jsp?docid=58898&flag=1

I’m believe that is talking about long term storage.

 

[AlmostHuman]

It only says that when you try to charge above 80%. When you set it below 80% does it say that? No!

Was simply pointing out that Tesla does make recommendations for daily driving SoC.

Sure if you keep it between 30%-50% that is bests for long term health. That may not work for everyone. I do the same, stays between 40% - 60% unless a longer trip is needed.

 

[igs]

Was simply pointing out that Tesla does make recommendations for daily driving SoC.

Read what I wrote again. 80% is the recommended MAXIMUM charge, not the recommended charge. There is a difference. Use common sense!

 

[AlmostHuman]

Read what I wrote again. 80% is the recommended MAXIMUM charge, not the recommended charge. There is a difference. Use common sense!

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