What range requirements do you have?
i agree with EV FUN.Sounds about right. I'd suggest using 45 cells, in either the 90 or 100 amp hour size. A little extra range isn't a problem, coming up a little short is.
First thought.... that is too much money for LiFePo4. Shop elsewhere.So... I'm new to the whole idea of powering a car with electricity and where to buy the supplies, so please bear with me.
chaz_fwb Was suggesting basically the same solution I had "calculated" (in quotes since I'm not quite sure I was calculating correctly) for my EV MGB idea (1 bank of 48 3.2V 110Ah batteries). But then what ElectriCar said makes sense too (48 3.2V 200Ah batteries)... What can anyone say to sway my thinking one direction or the other?
The place I'm looking at for prices is batteryspace. Again, I'm new here, so I hope it's not against any rules that I'm posting a couple direct links (please correct me quickly if it is not okay).
LiFePO4 Prismatic Module: 3.2V 200 Ah, 10C Rate (640 wh), CE Listed (60.0)
http://www.batteryspace.com/LiFePO4-Prismatic-Module-3.2V-200-Ah-10C-Rate-640-wh-CE-Listed.aspx
48 x $304.00 = $14,592
LiFePO4 Prismatic Module: 3.2V 110 Ah, 12C Rate (352wh), CE Listed (33.0)
http://www.batteryspace.com/LiFePO4-Prismatic-Module-3.2V-110-Ah-12C-Rate-352wh-CE-Listed.aspx
48 x $166.25 = $7980.00
Thoughts??
There are links on the right hand side of the browser window that has links to the sites sponsors. Many of them sell lithium batteries and there are others besides that if you're willing to do some searching. Those batteries in your link seem way over priced.So... I'm new to the whole idea of powering a car with electricity and where to buy the supplies, so please bear with me.
chaz_fwb Was suggesting basically the same solution I had "calculated" (in quotes since I'm not quite sure I was calculating correctly) for my EV MGB idea (1 bank of 48 3.2V 110Ah batteries). But then what ElectriCar said makes sense too (48 3.2V 200Ah batteries)... What can anyone say to sway my thinking one direction or the other?
The place I'm looking at for prices is batteryspace. Again, I'm new here, so I hope it's not against any rules that I'm posting a couple direct links (please correct me quickly if it is not okay).
LiFePO4 Prismatic Module: 3.2V 200 Ah, 10C Rate (640 wh), CE Listed (60.0)
http://www.batteryspace.com/LiFePO4-Prismatic-Module-3.2V-200-Ah-10C-Rate-640-wh-CE-Listed.aspx
48 x $304.00 = $14,592
LiFePO4 Prismatic Module: 3.2V 110 Ah, 12C Rate (352wh), CE Listed (33.0)
http://www.batteryspace.com/LiFePO4-Prismatic-Module-3.2V-110-Ah-12C-Rate-352wh-CE-Listed.aspx
48 x $166.25 = $7980.00
Thoughts??
I bought mine from hereSo... I'm new to the whole idea of powering a car with electricity and ...48 x $304.00 = $14,592
48 x $166.25 = $7980.00
Thoughts??
UGHH!! One little typo! Guess I should get more than 6 hours of sleep a day.Before anyone gets too excited, I believe they are 160ah (@$1.24ah) for $199.00 not 260ah, and that is about the going rate.
francis
I was hoping someone would post a different supplierI bought mine from here
http://elitepowersolutions.com/products/product_info.php?cPath=16&products_id=43
They cost $199 for 160 AH Thundersky's. They also include ALL HARDWARE!!! Some places charge extra. Lots extra!
Plus they may have enough in stock here in the US, that you may get them in a week like I did.
Best BMS I found was the MiniBMS advertised on this site.
Thank you for your thoughts! I'm on the verge of hijacking chaz_fwb's thread... So I'll throw my specs in another post.First thought.... that is too much money for LiFePo4. Shop elsewhere.
Second thought.... don't believe the 10C 12C stuff. It's more about not wanting to do than being able to do it...for a short time... very short time.
Third thought.... what is the weight/type of vehicle? What is the controller, what is the motor? Trans? Driving expectations?
These guys are all right... but it makes sense to fit your design with the right battery to achieve what they are saying. To do that, we need more info.
Sweet!Order factory direct from Calb Battery. Call 909-865-8809 and talk to Keegan. He's the sales manager for the US office in California. They were always very helpful.
Then maybe u should start one, cause u keep asking questions without giving the info...Thank you for your thoughts! I'm on the verge of hijacking chaz_fwb's thread... So I'll throw my specs in another post.
Re: rule of thumb....Not really, until you determine what you have and what you want. What are your existing components rated for? Can your controller limit motor voltage? Yes, doubling the ah's will double your range...practically speaking.I think the real question here is: Is there a good rule of thumb in going from a 144 v (12, 12v) lead acid deep cell setup to a LiFePO4 setup? I think I'm seeing recommendations for between 144V and 160V (more is a bit better for current draw, operating temperature and torque). In chaz_fwb's configuration, what "real-world" benefits could be realized by going from a 100Ah battery to a (hypothetically) a 200Ah battery? Would the battery pack literally take you twice the distance?