Go Back   EcoModder Forum > EcoModding > Fossil Fuel Free
Register Now
 Register Now
 


Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 03-11-2017, 03:15 PM   #11 (permalink)
Master EcoModder
 
Join Date: Sep 2010
Location: Saskatoon, canada
Posts: 1,458

ChargE (not yet running) - '92 Mazda MX6 LX
90 day: 33.89 mpg (US)

Ford Prefect - '18 Ford F150 XLT XTR
Thanks: 740
Thanked 536 Times in 431 Posts
Quote:
Originally Posted by oil pan 4 View Post
If the battery resting voltage is 350, and the peak sine wave voltage on 240v AC is also 350 it's still going to need to be stepped up to charge a 350v battery.
Good Point! I messed up the peak voltage calculation.

The Leaf is around 400 V resting, so it definitely boosts. AND you can use a 120V cord .. so even a 150V pack would need a boost if you were going to charge from 120V.

I guess there must be another reason that higher voltage is .. better? .. more efficient? ..

__________________
In THEORY there is no difference between Theory and Practice
In PRACTICE there IS!

Last edited by thingstodo; 03-11-2017 at 03:21 PM.. Reason: Hit the wrong button - I was not finished
  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 03-11-2017, 06:32 PM   #12 (permalink)
EV convert
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 9,050

Sub - '84 Chevy Diesel Suburban C10
SUV
90 day: 19.5 mpg (US)

camaro - '85 Chevy Camaro Z28

Riot - '03 Kia Rio POS
Team Hyundai
90 day: 30.21 mpg (US)

Bug - '01 VW Beetle GLSturbo
90 day: 26.43 mpg (US)

Sub2500 - '86 GMC Suburban C2500
90 day: 11.95 mpg (US)

Snow flake - '11 Nissan Leaf SL
SUV
90 day: 141.63 mpg (US)
Thanks: 215
Thanked 2,953 Times in 2,300 Posts
I think it's smaller wire can be used to carry the same amount of power, higher voltage or lower voltage the parts still cost around the same and a lot of components are tailored around the 350 to 700 V DC market.
__________________
1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
  Reply With Quote
The Following User Says Thank You to oil pan 4 For This Useful Post:
Fingie (03-12-2017)
Old 03-12-2017, 09:37 AM   #13 (permalink)
Volvo-driving MachYeen
 
Fingie's Avatar
 
Join Date: Jan 2015
Location: Finland
Posts: 789

Neo Volvo - '98 Volvo S70 10V
90 day: 24.98 mpg (US)
Thanks: 298
Thanked 82 Times in 68 Posts
it's mainly that. and maybe investing into higher-voltage tech finally evolves settles to some kind of a standard, maybe even modular, tech?

If I can get a EV that doesn't rust I could drive it forever, if the only major thing wearing out is the battery and driveline bearings.
__________________
If you don't make any mistakes in your life,
life itself will be a f*ckup.



With Volvo to Valhalla and back!
  Reply With Quote
Old 03-13-2017, 07:31 AM   #14 (permalink)
Master EcoModder
 
sendler's Avatar
 
Join Date: May 2011
Location: Syracuse, NY USA
Posts: 2,935

Honda CBR250R FI Single - '11 Honda CBR250R
90 day: 105.14 mpg (US)

2001 Honda Insight stick - '01 Honda Insight manual
90 day: 60.68 mpg (US)

2009 Honda Fit auto - '09 Honda Fit Auto
90 day: 38.51 mpg (US)

PCX153 - '13 Honda PCX150
90 day: 104.48 mpg (US)

2015 Yamaha R3 - '15 Yamaha R3
90 day: 80.94 mpg (US)

Ninja650 - '19 Kawasaki Ninja 650
90 day: 72.57 mpg (US)
Thanks: 326
Thanked 1,312 Times in 966 Posts
The next trend in high end EV's from Porsche and Tesla will be 800V charging as soon as they can make it work in order to reduce the quick charge times. The roadside Supercharger stations for Tesla already have dedicated high voltage mains/ transformers so they can supply any voltage that they want without boost. The batteries can be split to charge at 800 and discharge at 400 if the caps for the motor controllers are still the limiting factor in higher operating voltages.

  Reply With Quote
Reply  Post New Thread


Tags
battery pack voltage

Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2021, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com