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[ssilverman21]

I've read that the optimal max charge is around 85%. I was curious to know what others drive the battery down to before recharging back up to 85%?

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[daveo4EV]

one of many many many threads already discussing this issue

TLDR; drive the car - don't sweat the battery - charge to 85% for daily use- 100% pre-road trip…you'll be fine.

https://www.taycanforum.com/forum/t...mend-charging-and-up-to-what-max-level.10081/

 

[daveo4EV]

https://www.taycanforum.com/forum/t...e-is-it-good-have-less-charging-cycles.16183/

 

[daveo4EV]

topic is pretty well covered - recommend you review/contribute to the many many existing threads.

 

[Vim Schrotnock]

Yes - topic well covered, but I'll add my two bits, coming from one of the 11 US technicians certified to work on the battery. These are his recommendations for best battery health, longevity and service. Charge to 85% on a daily basis, and limit the number of times you fast charge to 100%. No strict limit here, just don't fast charge every day to 100% for sure. Also, every month or so, run the car down to 10-20% battery charge and let it sit overnight. This will help the software 'balance' the cell charging, and will expose any potential defective cells at an early point. If you have a cell problem, like I did, charging to 85% daily 'covers up' the problem to a certain extent. I had no 'error messages for three years. Recently, I noticed a significant decrease in range, and my car was discharging 10% over just a few days when sitting unattended, so I knew there was a problem. There were no 'faults' or error messages though until they ran the car down to 10% and let it sit overnight. Then the car returned an error on one cell, and they were able to justify replacing two modules.

 

[ssilverman21]

Yes - topic well covered, but I'll add my two bits, coming from one of the 11 US technicians certified to work on the battery. These are his recommendations for best battery health, longevity and service. Charge to 85% on a daily basis, and limit the number of times you fast charge to 100%. No strict limit here, just don't fast charge every day to 100% for sure. Also, every month or so, run the car down to 10-20% battery charge and let it sit overnight. This will help the software 'balance' the cell charging, and will expose any potential defective cells at an early point. If you have a cell problem, like I did, charging to 85% daily 'covers up' the problem to a certain extent. I had no 'error messages for three years. Recently, I noticed a significant decrease in range, and my car was discharging 10% over just a few days when sitting unattended, so I knew there was a problem. There were no 'faults' or error messages though until they ran the car down to 10% and let it sit overnight. Then the car returned an error on one cell, and they were able to justify replacing two modules.

Very helpful. Thank you for this

 

[The Riddler]

Yes - topic well covered, but I'll add my two bits, coming from one of the 11 US technicians certified to work on the battery. These are his recommendations for best battery health, longevity and service. Charge to 85% on a daily basis, and limit the number of times you fast charge to 100%. No strict limit here, just don't fast charge every day to 100% for sure. Also, every month or so, run the car down to 10-20% battery charge and let it sit overnight. This will help the software 'balance' the cell charging, and will expose any potential defective cells at an early point. If you have a cell problem, like I did, charging to 85% daily 'covers up' the problem to a certain extent. I had no 'error messages for three years. Recently, I noticed a significant decrease in range, and my car was discharging 10% over just a few days when sitting unattended, so I knew there was a problem. There were no 'faults' or error messages though until they ran the car down to 10% and let it sit overnight. Then the car returned an error on one cell, and they were able to justify replacing two modules.

One of the most helpful posts i have read for some time, thanks for sharing!

 

[W1NGE]

I've read that the optimal max charge is around 85%. I was curious to know what others drive the battery down to before recharging back up to 85%?

It doesn't matter what the value is.

A full cycle is 0% to 100% which is something you are highly unlikely to do. The battery has an 8 yr 100K warranty. Enjoy the car and don't get hung up on charging!

That said charging to 85% is a Porsche recommendation and I'd follow their advice for daily charging. For a specific longer journey I'd charge to 100% in the knowledge that I'm going to use it that day.

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