Kokam batteries
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Kokam batteries
by Theoldcars@aol.com
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Re: Kokam batteries
by Myles Twete
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Oh, sorry --- when I said “performance
list”, I meant that Kokam is a performance battery and company and not one of
the ones that promised the moon. I should have been clearer. -MT From:
oeva-list-bounces@... [mailto:oeva-list-bounces@...] On Behalf Of Theoldcars@... Hello
Myles I
have not heard anything negative about Kokam batteries. There was a race
car www.PROEVcom that was using them. I
have not checked on that for some time. I have no idea what their prices are
like. Don In
a message dated 10/13/2009 4:08:25 PM Pacific Daylight Time,
oeva-list-request@... writes:
_______________________________________________ Oeva-list mailing list Oeva-list@... http://www.rdrop.com/mailman/listinfo/oeva-list |
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Re: Kokam batteries
by Myles Twete
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And Kokams have a long track
record in the RC hobby---I’ve used them for many many years. -MT From:
oeva-list-bounces@... [mailto:oeva-list-bounces@...] On Behalf Of Myles
Twete Oh, sorry --- when I said
“performance list”, I meant that Kokam is a performance battery and company and
not one of the ones that promised the moon. I should have been clearer. -MT From:
oeva-list-bounces@... [mailto:oeva-list-bounces@...] On Behalf Of Theoldcars@... Hello
Myles I
have not heard anything negative about Kokam batteries. There was a race
car www.PROEVcom that was using them. I
have not checked on that for some time. I have no idea what their prices are
like. Don In
a message dated 10/13/2009 4:08:25 PM Pacific Daylight Time,
oeva-list-request@... writes:
_______________________________________________ Oeva-list mailing list Oeva-list@... http://www.rdrop.com/mailman/listinfo/oeva-list |
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If people are interested in Kokam batteries, there is a local ev owner who is using them. Chris Morgan has a Porsche 911 with 100 Kokam cells powering an AC Propulsion system. I did a little work to the car -- BMS related -- and got to drive it. To this day it's still my favorite EV. It was really fast, and had good range. And it's a bright red Porsche, so it's fun to drive. A couple things about my limited experience with the Kokams: the shape of the cells makes them a little hard to work with. They are just a flat rectangle, maybe an inch thick. Once they are wired together in series you can end up with a problem if you have to replace one of the batteries (or bms modules) in the middle of the chain. You might have to start at the end and dismantle the whole thing to get to it, because of tight clearance for your tools. Builders keep this in mind if you use these. Ideally you'd build a box that allows enough clearance to access individual cells, but there are space constraints that can prevent this. Also, when there was some uncertainty about one of these batteries it was unclear whether or not we could order a replacement. But this may be because these batteries were limited production. All that being said, the person who would really know is Chris Morgan. He's had this car for a while and is in the Portland area. I'll ask him to post to the oeva board on his experience. I have also heard rumors that Kokam may be looking to offer a different line of EV batteries, and possibly sponsor an EV drag car that some of us have seen before. Perhaps those who know more about this would like to post. Ron --- On Wed, 10/14/09, Myles Twete <matwete@...> wrote:
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Re: Kokam batteries
by Myles Twete
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And of course, Victor Tikhonov has
experience with EV-size Kokams and has developed a BMS for them --- www.metricmind.com
-mt
From: Ron Jayasuriya
[mailto:evmail4ron@...]
Sent: Wednesday, October 14, 2009 9:38 AM
To: oeva-list@...; Myles Twete
Subject: Re: [Oeva-list] Kokam batteries
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If people are interested in Kokam batteries, there is a
local ev owner who is using them.
And Kokams have a long track record in the RC
hobby---I’ve used them for many many years. -MT From:
oeva-list-bounces@... [mailto:oeva-list-bounces@...] On Behalf
Of Myles Twete Oh, sorry --- when I said “performance list”, I meant
that Kokam is a performance battery and company and not one of the ones that
promised the moon. I should have been clearer. -MT From:
oeva-list-bounces@... [mailto:oeva-list-bounces@...] On Behalf
Of Theoldcars@... Hello Myles I have not heard anything negative about Kokam
batteries. There was a race car www.PROEVcom that was using them. I
have not checked on that for some time. I have no idea what their prices are
like. Don In a message dated 10/13/2009 4:08:25 PM Pacific
Daylight Time, oeva-list-request@... writes:
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