Welcome to Tesla Motors Club
Discuss Tesla's Model S, Model 3, Model X, Model Y, Cybertruck, Roadster and More.
  • The latest TMC Podcast (#17) is now available on YouTube and all major podcast networks. We covered EV Tax Credit 2.0, Model Y & 3 Gangbuster Sales, Low Model X Demand, and California FSD Drama.

Seeking advice on Model S85 options

Plan to purchase a model S85 in the near future. The main goal is to travel cross country on non-interstate highways. I would appreciate any advice concerning the following options: 1. 90Kw upgrade 2. dual chargers 3. Any other comments regarding range and charging issues (or anything else for that matter.) Thank you in advance, Mike


2010 Roadster Sport || 2013 S85 || 2017 X100D
Supporting Member
Jul 8, 2013
Silver Spring, MD
If you wish to do extended travel, especially away from the supercharger network, the larger the battery the better.

The dual chargers are only used if you are charging on a HPWC that is set for amperages greater than 40A, or for some of the J1772 chargers (although almost all of those chargers are limited to 30A). If you do have access to those chargers, you will be very happy to have the dual chargers.

Other tips: Buy the CHAdeMO adapter. Buy all of the plugs adapters Tesla sells. Buy (or make) plug adapters that Tesla doesn't sell.


I recently went on a 14000 mile road trip. I did not keep track of my actual charging experiences, but there were less than a dozen times that I was able to take advantage of my Tesla's dual chargers. Almost all of my charging was on Superchargers, CHAdeMO chargers, or on chargers that provided 40 amps or less--so the dual chargers were mainly superfluous.

Products we're discussing on TMC...

About Us

Formed in 2006, Tesla Motors Club (TMC) was the first independent online Tesla community. Today it remains the largest and most dynamic community of Tesla enthusiasts. Learn more.

Do you value your experience at TMC? Consider becoming a Supporting Member of Tesla Motors Club. As a thank you for your contribution, you'll get nearly no ads in the Community and Groups sections. Additional perks are available depending on the level of contribution. Please visit the Account Upgrades page for more details.