David,
I can corroborate your numbers on pack sizing. You pretty much summed up my
conversion. I have 45 cells of ThunderSky 100Ah cells in a Honda del Sol for a
nominal 144V pack and 13 kWh. In that car, I have a 50 mile range (barely).
When new, I drove it 46 miles without issues, but I
//groups.yahoo.com/group/NEDRA)
>
>
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'GM CEO sez a future 200mi GM EV will fight a ~$35k 200mi Tesla-3 EV'
http://transportevolved.com/2014/07/21/lg-chem-200-mile-batteries-way-2016/
LG Chem: 200-Mile Batteries on Their Way for 2016
July 21, 2014 By Nikki Gordon-Bloomfield
[images
http://media.transportevolved.com/wp-content/upl
http://www.autoevolution.com/news/tesla-model-s-accident-son-crashes-fathers-car-83969.html#comid26327
Tesla Model S Accident: Son Crashes Father’s Car
by Andrei Tutu 16th July 2014
[image
http://s1.cdn.autoevolution.com/images/news/tesla-model-s-accident-son-crashes-fathers-car-83969-7.jpg
(
Another factor to consider is that while power capability varies by design,
as a general rule, smaller cells are usually capable of lower power output.
For example, the CALB 40ah cells I mentioned are rated for a maximum
discharge of 2C (80 amps). At 144v, 80a is 11.5kW. Allowing for losses,
It does tickle me seeing such a luminary engineering setup like Bosch making
such a silly mistake after Tesla has 'been there, done that'. It may turn out
well for them but it seems a bit arrogant when you consider how much a success
Tesla has had after just 1/10 of the time all the big automak
The discharge rate of the cells should play into the calculations as well. If
the cells have a 3C max rate, 45 90 ah cells could produce about 52 HP (270
amps max@144v), resulting in a somewhat underpowered vehicle.
How much does exceeding the discharge rate reduce the life of the pack? Is
th
I would consider my ThunderSky cells as 1C normal draw with bursts of 2C or
maybe a little more. I have rarely seen 3C even in the best conditions. If
they are cold, don't even expect 2C.
They work OK, but they are not a high performance pack.
Mike
On July 22, 2014 2:20:42 AM MDT, EVDL Admin
I assumed people know, but guess I should specifically point out that
ThunderSky is the previous name for the company now known as Winston. I don't
know how much their chemistry varies between the two company names.
My cells are more than 4 years old, so it is quite possible for new cells to
my rocking chair and drool. LOLOL
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On 07/22/2014 08:29 AM, Mike Nickerson via EV wrote:
I would consider my ThunderSky cells as 1C normal draw with bursts of 2C or
maybe a little more. I have rarely seen 3C even in the best conditions. If
they are cold, don't even expect 2C.
With my ~2008 vintage TS-LFP260s, I can pull at lea
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> For EV drag racing discussion, please use NEDRA (
> http://groups.yahoo.com/group/NEDRA)
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sit on the front
> porch in my rocking chair and drool. LOLOL
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going to be a show-stopper, which I think is the most
important thing for me to worry about with this type of exercise at this stage.
Thanks again for the help!
b&
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On Tue Jul 22 10:24:59 PDT 2014 ev@lists.evdl.org said:
>> How about CALB? The smallest one EVSource sells (that's not an endorsement,
>> it's just one place I found offering them online) is 40ah.
>
>That's actually what I was using for my own back-of-the-envelope calculations,
>but from EVWest's
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On 07/22/2014 12:33 PM, John Lussmyer via EV wrote:
Have you thought about Leaf modules? That's what I'm using in my
truck.
http://hybridautocenter.com/HAC4/index.php?option=com_hikashop&ctrl=product&task=show&cid=4&name=new-11kw-h-battery-block-182v-60ah&Itemid=605
-- Try my
What are the BMS
www.designnews.com/author.asp?section_id=1366&doc_id=274132&cid=nl.dn14&dfpPParams=ind_184,industry_auto,bid_318,aid_274132&dfpLayout=blog
Dhar, who was instrumental in the development of the battery for GM's
groundbreaking EV1, believes that the price of a 30-kWh battery needs to hit
$5,000. T
n
> the pack sizes, or some other variation on the theme.
>
> Regardless, the math seems to show that the physical dimensions of the
> batteries aren't going to be a show-stopper, which I think is the most
> important thing for me to worry about with this type of exercise at this
&g
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On 22 Jul 2014 at 10:24, Ben Goren via EV wrote:
> Wikipedia says curb weight is 2,445. I don't see this ending up at 3,500 after
> conversion...but I also like estimating pessimistically.
I see that too. But that's probably for an early 170 six with 3-speed stick
and no options. Remember, in
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