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Here is the CTEK MXS 5.0 from Autoanything.com: Link.
They have a Labor Day Sale using Labor21 which brings the price down to $73.46 including S/H and no tax to FL

Would somebody please confirm this is the correct charger for using cigarette adapter on my Macan Turbo 15?
This is the CTEK website https://smartercharger.com. The MXS 5.0 looks new. Most people probably buy the 4.2. You have to compare the features side by*side to see the difference. Don't confuse 5.0 chargers. One of them is for European voltage. The 4.2 goes on sale all the time. Just look around. Sometimes it comes bundled with the accessories you might want.

Not sure I think model #3300 is what Porsche's version is. Someone confirm?
At one time the rebranded Porsche charger was the 3300, that's 3.3 Amps vs the 4.2 amps. Make sure you get a version for handling AGM batteries. Porsche was still selling rebranded chargers that did not have that setting.
 

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It's happily charging.

Another question - a couple of times when starting the car, I had been hearing a warning that the battery was low. Is that something to worry about? (I think it had to do with the fact that I was leaving the radar detector plugged in and the car keeps power to the outlet for 30 mins after shutoff.)
Why would you leave anything running, ever?
 

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36+ hours and the battery is still not fully charged. I went by the dealer and spoke to the service manager. He said the CTEK can take a really long time (several days) to charge depending on how low the battery is. If by Monday, it's still not fully charged, bring it in and he will fast charge it.
If you bought a Porsche charger, its probably the 3300. Did you read the manual? What did it say? Go download from the ctek 3300 manual from their website. It can take more than 48 hours for the 4.3 if the battery is drained. The 3.3 amp will take longer. The 7000 less time.

Really bad idea to leave anything plugged in these days. The cars eat energy.
 

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Might be moving off topic a little. Another storage issue that may relate more to items like generators, snow blowers, lawn tractors, etc. that may see longer periods of no usage is the use of fuel stabilizers.
That is a real problem as ethanol is a killer for small engines. Its also a reason why electric small engines is becoming more and more viable and is real. No need to have a gas/oil trimmer, blower, chain saw, etc anymore nor a gas snow blower or lawn mower for small jobs. They are not come into their own for larger engines yet but they will. No need to even touch gas, store it, go get it, just plug in the battery.

While much of what CA does I think is strange, in this case I agree with them


The freedom of not having to store gasoline feels good. Its just a matter of time before for small engines, they will all be gone.
 

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Doing some research on this topic ahead of delivery of my 2020 GTS. It looks like there is not too much of a premium to be paid for the Porsche Charge-O-Mat Pro, which allows for use with both traditional and Li batteries, and the current version is 5.0 amps. Below is from the Porsche Canada website (so cost in CAD). Have also been on the CTEK website and looked at the MSX 5.0, the MUS 4.3 and the 7002 units. If you buy any of the CTEK units, you also have to buy the cigarette lighter adapter which adds an additional cost whereas the pic below shows that the Porsche Unit comes with this connection already. Given the capability to use also with Li batteries, it seem worthwhile to go with the Porsche branded unit. Happy for advice to the contrary as I have no experience using one of these battery maintainer units.
There are so many reasons why not to get a CTEK rebranded charger I'm not sure where to begin.

  • You know how much the Porsche lithium battery cost? Be prepared to get an equity loan. And its not for the SUV. Its a lightweight battery for the Weissach sportcars. Antigravity sells lithium starter batteries, but not for the SUV. Macan batteries are 92 or 105 Amp hours, not a measly 60. I dont know if there are any others out there but whats the point? Porsche battery prices are outrageous to being with now quintuple the price? To lose 20 lbs on a two ton SUV?
  • I think Amazon is an authorized reseller if sold by Amazon. Price is a lot cheaper than from the CTEK website.
  • About the cigarette plug. What are you going to do when the hardwired plug breaks? And I can guarantee you the plugs break. Its just a piece of plastic. Now what are you going to do, buy another $245 unit?
    See the open spring and plunger? That plunger pushes down and make contact closing the circuit. That's supposed to be covered with plastic. They can break. Meanwhile, a new plug is $10 on Amazon.
  • If you leave it hooked up for a while, and the power goes out, then what? AFAIK it won't restart charging. People have come back to dead batteries.
  • Does the 95B.2 have jump point under the hood? I presume so. How are you going to hook it up to the jump point without the alligator clips?
  • Someday, you might decide to hardwire it directly to the battery. Read through the website and some people have done that. Then what? You need the ring adapters.
  • What if you need more length? How do you hook up the extension piece to get another 10' of length?
With the CTEK, you get a "system". With the Porsche rebranded CTEK, you get to pay the Porsche Tax and are locked into a closed system with no adaptability for other cars. What if one day you decide to charge another car at the battery posts and the cigarette lighter isn't hot? I don't think Japanese cars are hot. You can't charge them that way. If you go with any of the CTEKs, you've bought the system. If you go with paying the Porsche Tax, you've limited yourself.

Maybe that helps?
 

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Any of the 5 Amp and higher should do it. But, the 7002 has a mode for supplying power with the battery out, if that is something you need. It should also be charge quicker. I have both an older 4.3 and the 7002 but only use the 7002 now. If you want to do the battery analyzer thing, I would avoid something like the test and charge and get a real battery analyzer. Many people get the MXS 5.0. But if it get cold, than the Polar unit might be best for you.
 

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Alternator testing is good when the car gets older. But if you are going to worry about that, get a real battery analyzer. The contain the test to see if the alternator is working correctly or the ripple in the alternator charging.
 

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thanks, yes, typo on CTEK :)
You are correct.....its probably the car timing out. There is no clamp option for the Porsche branded POS.
so, off to a CTEK with under hood clamps. I guess 5.0 is the latest and greatest version for us ?
7.0 might be quicker in charging, more current. Macan has a large capacity battery compared to sportscars or common economy cars.
 
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