So apparently, always charging to 100% is OK (?)

[tigerbalm]

With all of this talk of battery tech, I thought it interesting that there is no doubt whatsoever who supplies the battery for the Taycan: LG Energy Solution.

https://www.lgensol.com/en/business-automotive-battery

Scroll down to see picture of the Taycan using their 3rd gen battery, most likely from their EU factory in Poland*.

I wonder does Porsche also use LG's BMS?

* I saw a "Made in Poland" sticker on a battery being installed on my recent Taycan factory tour – though it is possible that batteries come from any of LG's four global factories.

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[W1NGE]

With all of this talk of battery tech, I thought it interesting that there is no doubt whatsoever who supplies the battery for the Taycan: LG Energy Solution.

https://www.lgensol.com/en/business-automotive-battery

Scroll down to see picture of the Taycan using their 3rd gen battery, most likely from their EU factory in Poland*.

I wonder does Porsche also use LG's BMS?

* I saw a "Made in Poland" sticker on a battery being installed on my recent Taycan factory tour – though it is possible that batteries come from any of LG's four global factories.

I think from memory that Panasonic are behind Tesla batteries.

 

[Dee]

With all of this talk of battery tech, I thought it interesting that there is no doubt whatsoever who supplies the battery for the Taycan: LG Energy Solution.

https://www.lgensol.com/en/business-automotive-battery

Scroll down to see picture of the Taycan using their 3rd gen battery, most likely from their EU factory in Poland*.

I wonder does Porsche also use LG's BMS?

* I saw a "Made in Poland" sticker on a battery being installed on my recent Taycan factory tour – though it is possible that batteries come from any of LG's four global factories.

Actually it's LG Chem.

https://www.batterydesign.net/2019-porsche-taycan/

 

[SmokeyDBear]

Clearly the correct answer is 93%. You wouldn’t put 89 octane in your combustion Porsche so why would you put midgrade charge in your Taycan?

 

[daveo4EV]

Mid-grade charge is with PMC+/PMCC - the electrons have 1/2 the energy - you have to charge with ClipperCreek, Wallbox, Tesla, ChargePoint to get "full power" high-octane electrons

Porsche halve's their electron energy in the north american EVSE market to avoid battery stress and EVSE overheating…

* - yes I'm kidding!!!!!

 

[ardevd]

Having worked with one of the major players in EV engineering, here’s what the data I’ve seen suggests:

Charging to 80% as opposed to 100% has an insignificant impact on long term battery health. However, long term storage at 100% is not advised, but to negate that issue in any meaningful lil you would have to keep the battery at around 50% SoC, not 80%.~40-60% is optimal SoC.

Regardless, the batteries in modern EVs, the ones from LG Chem specifically have proven to hold up really well to long term use. What’s interesting though is that the car manufacturers themselves didn’t really know what to expect initially since LG Chem provides an extremely conservative guarantee of 70% health after 5 years. So I’ve seen some pretty bonkers tests being conducted in house to try and figure out what can be expected in terms of health degradation over time given extreme conditions.

 

[backslashed]

If Porsche recommends to charge to 85% for the battery’s health, why do you question the manufacturer’s recommendation???

 

[Fish Fingers]

Having worked with one of the major players in EV engineering, here’s what the data I’ve seen suggests:

Charging to 80% as opposed to 100% has an insignificant impact on long term battery health. However, long term storage at 100% is not advised, but to negate that issue in any meaningful lil you would have to keep the battery at around 50% SoC, not 80%.~40-60% is optimal SoC.

Regardless, the batteries in modern EVs, the ones from LG Chem specifically have proven to hold up really well to long term use. What’s interesting though is that the car manufacturers themselves didn’t really know what to expect initially since LG Chem provides an extremely conservative guarantee of 70% health after 5 years. So I’ve seen some pretty bonkers tests being conducted in house to try and figure out what can be expected in terms of health degradation over time given extreme conditions.

Interesting.....
Makes me wonder who else LG Chem make batteries for?

 

[Vim Schrotnock]

If Porsche recommends to charge to 85% for the battery’s health, why do you question the manufacturer’s recommendation???

Because this manufacturer can't even manufacture a charger that meets their own specifications (40 amps). Plus there does seem to be a fair amount of uncertainty in this area when discussing with experts.

 

[daveo4EV]

If Porsche recommends to charge to 85% for the battery’s health, why do you question the manufacturer’s recommendation???

that's because it's all a SWAG (Scientific Wild Ass Guess) - factually no one can "look inside" a LiON battery and determine it's health - so it's all guess work (with data driven estimates) as to what any particular usage will do to over all battery health…and the variables are extensive

so every manufacture comes up with software and guidelines informed by their scientists and engineers and ultimately signed off on by legal/warranty people to say yeah - well if the battery is used that way and our software charges it this way - we'll have to pony up for the warranty if it fails given these parameters…

but at the end of the day it's all a well informed guess that will play out over time.

 

[kort]

Because this manufacturer can't even manufacture a charger that meets their own specifications (40 amps). Plus there does seem to be a fair amount of uncertainty in this area when discussing with experts.

porsche did not design or manufacture their EVSE, they just used a poorly conceived one for their cars

 

[DCYL725]

I live in a city where there is plenty of fast chargers around. I also have no home charging as we live in apartments and rent a car space.

Charging-wise, I've grown accustomed to charging to whatever level needed based on the time I have to get to my next appointment.

Charge, pick up some stuff, then I'm out. Normally 30 minutes of charge gets me to above 80% from 20 to 30%.

To be honest, can't be bothered by this battery health stuff on a day-t0-day basis and I think the only issues are the SoC when stored long-term.

I've charged past 90% many times and drove 10% off immediately after.

The only problem with charging to 100% for me is that the final 10% is slow to charge and takes a while, otherwise, I would juice to 100% every chance I get since it's driven daily.

 

[johnarpy]

I charge to 100% every night at home. I will continue to do that. I would never buy a car that had a 25 gallon gas tank and only later to be told to only fill it to 20 gallons. The Taycan doesn't let you go below or above a certain capacity to protects the battery. If this is such a concern perhaps an electric car is not the best fit. I've owned 8 different electric cars and have always charged to 100% at home but rarely used DC chargers and never went to 100 on them.

 

[DCYL725]

I charge to 100% every night at home. I will continue to do that. I would never buy a car that had a 25 gallon gas tank and only later to be told to only fill it to 20 gallons. The Taycan doesn't let you go below or above a certain capacity to protects the battery. If this is such a concern perhaps an electric car is not the best fit. I've owned 8 different electric cars and have always charged to 100% at home but rarely used DC chargers and never went to 100 on them.

Agree. Though I've only used DC charging so far in the past 9 months of ownership.

Just charge it to whatever. The most important thing is to drive it.

It's the idleness that degrades the battery.

 

[W1NGE]

I charge to 100% every night at home. I will continue to do that. I would never buy a car that had a 25 gallon gas tank and only later to be told to only fill it to 20 gallons. The Taycan doesn't let you go below or above a certain capacity to protects the battery. If this is such a concern perhaps an electric car is not the best fit. I've owned 8 different electric cars and have always charged to 100% at home but rarely used DC chargers and never went to 100 on them.

Petrol / diesel anology doesn't really work with batteries unfortunately.

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