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No Limits on Supercharge Cycles!

Talked with Supercharger chief engineer tonight at event and definitively confirmed:

1. You can Supercharge as often as you like with NO degradation of battery.

2. TM software manages everything. You just hook up.

3. Charges to 50% at high rate, then tapers. After 80%, it slows more to protect it (but keeps charging)

4. Optimal use is fast (30min) charge from near empty.

The technology and the business model are game changers for EVs.

When you go 1,000 miles on sunlight for free, why would you spend $200 burning gas?

This SuperCharger is a total win.

Didnt Pungeousomething Dave say that on page 17 in the owners manual, that it SAYS the Super Chargers do infact affect battery life?

Can anyone check their manuals and confirm?

@cloroxbb Unless my pdf search function in my broswer is broken, there isn't a single mention of superchrargers at all in the manual. Certainly nothing on page 17.

I'm pretty sure I have the latest Owner's Guide, and it does not discuss Supercharging at all. The only reference to a negative effect on battery life reads "To drive as far as possible, change the charge level to MAX RANGE. Although this setting charges the Battery to full capacity, using it frequently reduces Battery life."

There's definitely been a confusion (not saying it is the case here) where folks mix max range charging with supercharging. TM are definitely on record (e.g., in the Owners Manual) saying too much range charging is bad. I don't recall TM ever saying too much SuperCharging is bad. But then again my memory isn't what it used to be.

Sit on it. I think it's accompanied by a mofo big generator to power it, possibly with a battery bank. I'll ask. When I get around to it.

Not "a bit" strong. Mustard gas out his bunghole.

@Mark K

<< Hey, how did this old thread get bumped back up? There's a newer one about a Step Change in Supercharging. It's more current. >>

Ha! Get it? Supercharging, it's more current.....

It doesn't get any better than this ;)

An unintentional pun. Shocking!

It pole-volted over the other one.

Resistence is futile! Even if it works.

Isn't it interesting to see how many regular forum participants have dropped out of sight since September? This thread is illustrative. It was also more civilized when Voelker was in the room. I will be more careful....

As to the question that was aired and reactivated this thread -

1. Range Charging (>90%) does reduce life.

2. SuperCharging (50-70%) does not.

This is true because the driving factor of degradation is what happens in the battery chemistry and structure due to extremes - either of charge or discharge.

The car software pretty much manages this for you to avoid these extremes.

If you plug in daily and you let the computers do their thing, you pretty much don't need to think about it.

If you want to actively manage it yourself, stick to the 80/20 rule. Keep your charge between 20% and 80% and you will extend the life of your pack beyond what's typical.

On road trips, you will actually improve life by more frequent supercharger stops instead of any Max Range charges.

Again, SuperCharger damage is a misconception.

Deep charge/discharge is the thing to avoid, and their software pretty much tells you what to do, so you don't need to be a tech nerd to figure it out. Just do what the gauge tells you, similar to a gas car.

Pretty worry-free if you go with the flow.

FWIW - Pungoteague_Dave never said supercharging damages the battery.

He quoted the page from the manual stating that range charging reduces battery life (thread about 17" screen on the General forum, stumbled upon by chance).

@Pungoteague_Dave - I recon most of the old regular forum participants got their MS-es since September, and now they are enjoying the drive. Antidote for forum addiction. (Volker quit cold turkey... different story.)

Brian, there is a pun hidden somewhere in your solecism "resistence," but I'll be damned if I can find it.

One other thing that I read some time back is that if you do a range charge, try to time it so that it is close to when you actually need to use it. i.e. it is worse for the battery to leave it sitting on a full range charge for an extended period.

my spelling error. But resistance is ohmic, and is part and parcel of "work". So "resistance is futile" is usually false, because there must be resistance to have anything that does work. So the Borg were actually misstating the general case.

Ah . . . so your spelling of resistence was just a deversion.

write.mikeadams - true statement. But best is simply to dodge using Range charge is you can.


I just got a note indicating Aerospace engineering says if we charge greater than c/5 rate we will degrade the batteries. This does not seem to agree with the reports from Tesla. What am I missing? I use the sc stations on all long trips.

@reitmanr - what??? Are you saying you got a note talking about Tesla batteries or about some other Li-ion battery?

I got word from a fellow engineer MS owner re Li batteries.
Presumably the chemistry is universal. I am guessing that TM has taken all this in to account and thats how they came up with their charging programs. Just want to be sure as I use SC on all my distance trips and top off in Gilroy when I am down there. Would love to hear from TM directly.

Well since Tesla is warranting the batteries, it's their word that matters.

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