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

Reply  Post New Thread
 
Submit Tools LinkBack Thread Tools
Old 11-02-2012, 07:49 AM   #21 (permalink)
EcoModding Lurker
 
ev99saturn's Avatar
 
Join Date: Sep 2012
Location: Maine
Posts: 42

Snake Oil - '10 Factory Five Racing Mk4
90 day: 77 mpg (US)
Thanks: 4
Thanked 6 Times in 4 Posts
NEDRA drag racers abuse their packs at much higher discharge rates and they continue to perform at top levels after many hundreds of runs. Few cell choices can even reach this level of performance. I am more than willing to find out how they do after a years of operation with occasional abuse. I don't plan on daily 19C discharge rates, but ask again in a few years and I will let you know how mine hold up.....

Quote:
Originally Posted by sendler View Post
What does a daily 19C discharge do to the cycle life?

  Reply With Quote
Alt Today
Popular topics

Other popular topics in this forum...

   
Old 11-02-2012, 08:00 AM   #22 (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
What are you planning on building? My interest is plug in EV's where we are looking for the magic 10,000 deep cycles.
  Reply With Quote
Old 11-02-2012, 08:27 AM   #23 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,041

CM400E - '81 Honda CM400E
90 day: 58.68 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)
Thanks: 2,389
Thanked 2,435 Times in 1,469 Posts
When I was looking into using A123 cells it was going to be for a PHEV. This would provide me with enough EV range and power for ~10 miles of driving, enough for a daily commute. So, the pack was pretty small. The high power output of the A123s was nice because I didn't have to sacrifice power output or push the cells horribly hard like I would if I went with a prismatic type cell.
__________________
Current project: Adding regenerative braking to the Mirage
  Reply With Quote
Old 11-02-2012, 09:13 AM   #24 (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
They would be great for race vehicles, r/c helicopters and hand held power tools. An ev is better off spending the same money to get a comparable high discharge rate and 5 times the range from a bigger, more useful pack.
  Reply With Quote
Old 11-02-2012, 10:12 AM   #25 (permalink)
EcoModding Lurker
 
ev99saturn's Avatar
 
Join Date: Sep 2012
Location: Maine
Posts: 42

Snake Oil - '10 Factory Five Racing Mk4
90 day: 77 mpg (US)
Thanks: 4
Thanked 6 Times in 4 Posts
A nice feature of the A123 cells is their longevity. According to the manufacturer, at a 1C discharge rate, cycling cells to 100% DOD, after 3,000 cycles they still have over 90% of the initial capacity.

Once all of my batteries are finished and installed, normal driving at 50 mph will pull less than 1C per cell.

I built a 1956 AC Cobra replica with electric instead of gas. It's now on the road, but with minimal battery packs, only 3 out of 8 planned. I have 3 more packs in construction and currently working to finish them and add them into the car's pack.

The primary goal for the car is to have fun. A slightly secondary goal is to make at least as much power as a 427 V8. When all of the battery packs are completed and installed it will be slightly above that level.

Details about the car build are at evalbum.com/3567.



Quote:
Originally Posted by sendler View Post
What are you planning on building? My interest is plug in EV's where we are looking for the magic 10,000 deep cycles.
  Reply With Quote
Old 11-02-2012, 10:22 AM   #26 (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
Quote:
Originally Posted by ev99saturn View Post
I built a 1956 AC Cobra replica with electric instead of gas.
Cool!
  Reply With Quote
Old 11-03-2012, 02:37 PM   #27 (permalink)
EV convert
 
oil pan 4's Avatar
 
Join Date: Jul 2011
Location: NewMexico (USA)
Posts: 8,403

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: 124.63 mpg (US)
Thanks: 190
Thanked 2,751 Times in 2,155 Posts
MSRP for full factory spec AMP20 cells from a123 is from $70 up to $100 per cell.
I say get factory rejects, build twice the battery for about half the cost and pocket the difference.
And be happy a123 went bankrupt and hope johnson controls can straighten them out.
__________________
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
Old 06-20-2014, 01:55 PM   #28 (permalink)
Administrator
 
Daox's Avatar
 
Join Date: Dec 2007
Location: Germantown, WI
Posts: 11,041

CM400E - '81 Honda CM400E
90 day: 58.68 mpg (US)

Daox's Grey Prius - '04 Toyota Prius
Team Toyota
90 day: 49.53 mpg (US)

Daox's Insight - '00 Honda Insight
90 day: 64.33 mpg (US)

Swarthy - '14 Mitsubishi Mirage DE
Mitsubishi
90 day: 56.69 mpg (US)
Thanks: 2,389
Thanked 2,435 Times in 1,469 Posts
It looks like NEC has now bought A123. It also appears you can buy AMP20 cells online now. I wasn't aware of this until today. They are very pricey at $70 each though.

A123 Systems Cells and Battery Modules

They also have some B-grade cells for sale that look like they'd be fun to play with. They're cylindrical 3.3V / 2.2Ah for $4.50 each (min order qty 10). These little suckers can handle a CONTINUOUS 70A DISCHARGE! and 120A burst! WOW. These would make a nice small starting battery for something (just make sure your car doesn't sap em dry between driving). They weigh .15 lbs each! Of course they are B grade, so they probably don't fully live up to those specs, but that is still a nice battery.

I'm tempted to try these out on my motorcycle... Say I did a 2p (2 cells in parallel) pack, the starting battery would weigh in at 1.5 lbs haha, silly light.

__________________
Current project: Adding regenerative braking to the Mirage
  Reply With Quote
Reply  Post New Thread


Tags
a123, iron phosphate, lithium ion battery

Thread Tools




Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
Content Relevant URLs by vBSEO 3.5.2
All content copyright EcoModder.com