Leaving my Taycan for 6 months. Leave it plugged in or not?

[QueenBean]

Leave it plugged-in at 50% state of charge.

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[Scandinavian]

Can someone direct me to the proper trickle charger for the Taycan 12 V battery, thanks

Here is one that I have used.

https://smartercharger.com/collections/car-battery-chargers/products/ctek-lithium-us

 

[ciaranob]

Here is one that I have used.

https://smartercharger.com/collections/car-battery-chargers/products/ctek-lithium-us

Yep, +1 - good product - have one I used to trickle charge the Li-ion battery in my M4

 

[IrwinJ]

so I'm just trying to get a clear course of action because some people say I should leave the charger for the main battery plugged in while I'm gone for 6 months, others say no but put the 12 V battery on a trickle charger for the 6 months, while others say no charger for either battery but make sure I deactivate internal monitoring and don't use my Porsche Connect app during the 6 months I'm gone.

I'm really stuck on this.

 

[Scandinavian]

so I'm just trying to get a clear course of action because some people say I should leave the charger for the main battery plugged in while I'm gone for 6 months, others say no but put the 12 V battery on a trickle charger for the 6 months, while others say no charger for either battery but make sure I deactivate internal monitoring and don't use my Porsche Connect app during the 6 months I'm gone.

I'm really stuck on this.

It is not clear even from Porsche communications. Here is the latest version of their advice, but seems to be only for 3 months?

https://static.nhtsa.gov/odi/tsbs/2022/MC-10209809-0001.pdf

Have a good talk with your Porsche dealer around that document and perhaps call Porsche support and ask for a technician.

 

[IrwinJ]

this last communication you pointed me to is what I've been thinking I'll do - set a charge profile of 50% and click optimize charging which would sort of turn my PMCC into a trickle charger. And Also I'll attach a trickle charger to the 12 v battery (probably this one - Amazon.com: CTEK (56-926) LITHIUM US 12 Volt Fully Automatic LiFePO4 Battery Charger,Blue : Automotive ).

The only thing that concerns me is the communication saying those instructions are only for storing the car 3 months because I have no choice but to store it for 6 months. And contacting my dealership is useless since they know less than Porsche itself.

 

[raharris]

I don’t think the procedure for battery would change between 3 and 6 months. But other factors definitely come to play - like tire inflation, protecting against rodents etc - which I don’t think would be any different to an ICE vehicle.

 

[Pozuelo]

I am sure you can find a fellow member that lives near you, to volunteer to take your car for a spin once a month.

 

[ciaranob]

Yep, +1 - good product - have one I used to trickle charge the Li-ion battery in my M4

Meant to add a comment - it would be really useful if the MyPorsche app could report SoC of he 12V battery i.e. not just the HV SoC - if you travel a lot this would be a nice 'peace of mind' feature to have.

 

[QueenBean]

I would worry more about getting flat spots on your tires if you are not leaving it jacked-up. The Taycan is a very heavy vehicle. Ideally it should be driven, though jacking it would take some pressure off the tires. Maybe just inflate to a higher PSI while it is in lay-up mode.

 

[Browning]

I would worry more about getting flat spots on your tires if you are not leaving it jacked-up. The Taycan is a very heavy vehicle. Ideally it should be driven, though jacking it would take some pressure off the tires. Maybe just inflate to a higher PSI while it is in lay-up mode.

You could in order to minimise tyre wear park car on rubber matting

 

[DocMart3n]

At end of October when we leave our home in NC, my Taycan will stay in the garage. I'm wondering if I should leave it plugged in or not. I only charge it to 85%. I could (try, not sure I'll do it correctly) to set a profile that tells it to charge when it hits 25%. Or is that unnecessary?

An EV battery is best kept at 50%. It is the "goldilock zone" of a battery. The more extreme to either end the shorter the shelf life. Its not healthy to a battery at all to leave any electric car 100% charged or 0% charged. However, the Porsche never charges its battery to 100% and what appears as 100% is in fact 90%. So having the battery charged to around 55% is probably optimum (the real 50%). You can setup your desired charging levels in a Porsche as you like, so program it to 55% and keep it connected.
For the 12V battery I am not sure. Unfortunately, the Taycan, unless my little Nissan Leaf, has no solar cells to keep it topped up. In the past we used to disconnect a 12V battery, but I am not sure what that would do to the Taycans complicated electronics.... And whether or not it will be flat anyway when you return....

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