Michael Ross via EV wrote:
There are probably no definitive limits to either battery balancer or BMS...
But we call a series of batteries a battery just to be imprecise.
There is *definitely* no standard terminology. Sellers take Humpty
Dumpty's advice -- When I use a word, Humpty Dumpty said
Has anyone heard of this company, or have any experience with them.
http://www.thehybridshop.com/battery-conditioning/how-hybrid-battery-conditioning-works-science/
A friend has a 2005 Ford Escape Hybrid, and his batteries are starting to show
signs of old age.
To replace the pack at the
http://batteryuniversity.com/learn/article/how_to_restore_nickel_based_batteries
Sent from my iPad
On Nov 17, 2014, at 5:57 AM, Pestka, Dennis J via EV ev@lists.evdl.org
wrote:
Has anyone heard of this company, or have any experience with them.
Paul,
They are about the only game in town. I have looked briefly at their web
stuff and I think they know what they are doing. They seem to build and/or
sell some test equipment - implying some expertise.
Tomorrow I am visiting a community college (Blue Ridge in Flat Rock NC)
that has a
From the webpage description, it sounds like they know what they're doing,
though I have no way to judge whether they're using appropriate criteria for
deciding which modules are defective.
Alas, any time you fix a declining EV battery by replacing the worst cells
or blocks, rather than all of
Sent: Monday, November 17, 2014 9:15 AM
Subject: Re: [EVDL] Hybrid battery reconditioning
From the webpage description, it sounds like they know what they're doing,
though I have no way to judge whether they're using appropriate criteria for
deciding which modules are defective.
Alas, any
On this topic - reconditioning Prius packs. During the visit I am making
tomorrow to the Prius repair classes at Blue Ridge Community College...
what questions do you think I should ask them there to see how they are
managing their repairs of Prius packs?
The answers might be interesting to
List ev@lists.evdl.org
Sent: Monday, November 17, 2014 9:15 AM
Subject: Re: [EVDL] Hybrid battery reconditioning
From the webpage description, it sounds like they know what they're doing,
though I have no way to judge whether they're using appropriate criteria
for
deciding which modules
On Mon, Nov 17, 2014 at 7:06 AM, Paul Dove via EVev@lists.evdl.org wrote:
http://batteryuniversity.com/learn/article/how_to_restore_nickel_based_batteries
Just be aware that you can take *any* battery and charge it hard to get
a (temporary) improvement in its amphour capacity.
The problem
paul dove via EV wrote:
You all need to read the link I posted.
It explains how to recondition Nickle based batteries.
It also explains the failure mechanism and why this works.
I did read it, Paul. The Cadex info is old science, and is mainly
relevant to old-style nicads from decades ago.
EVDL Administrator via EV wrote:
Alas, any time you fix a declining EV battery by replacing the worst cells
or blocks, rather than all of them, you have no way to know what other cells
or blocks might turn toes up next week, next month, or next year.
That's true. However, it is also true that
Lee said: The only way to know for sure is to TEST. Test each cell or
battery, and see what you've got. If they are all low in capacity, then
it's time to replace the pack. If only one or two are significantly worse
than the rest, replace them and keep going. :-)
This was my assumption. I will
Here is one test unit available for Prius packs:
http://www.go2hev.com/hybrid-vehicle-battery-testing-and-analysis-kit.html
The maker Automotive Research Design (what an instructive name) does more
than just produce this test unit - they do a lot of training of mechanics
by various means.
On 17 Nov 2014 at 8:37, paul dove via EV wrote:
You all need to read the link I posted.
It explains how to recondition Nickle based batteries.
It also explains the failure mechanism and why this works.
I did read that page. It may be accurate - I'm not an electrochemist - but
it reminds
I believe the RAV4 uses a Tesla made pack - Li ion I presume.
On Mon, Nov 17, 2014 at 3:02 PM, EVDL Administrator via EV
ev@lists.evdl.org wrote:
On 17 Nov 2014 at 8:37, paul dove via EV wrote:
You all need to read the link I posted.
It explains how to recondition Nickle based
What I really want to guess is - do we think they can actually do a good
job of reconditioning a Pius pack for $1500? What if there were some
problems with the pack? I am not trying to learn how to do it in a home
situation (maybe later), this is about - is it likely the ARD system
actually does
-Original Message-
From: EV [mailto:ev-boun...@lists.evdl.org] On Behalf Of Michael Ross
via EV
Sent: Monday, November 17, 2014 12:15 PM
To: EVDL Administrator; Electric Vehicle Discussion List
Subject: Re: [EVDL] Hybrid battery reconditioning
I believe the RAV4 uses a Tesla made pack - Li ion I
To: Electric Vehicle Discussion List
Subject: Re: [EVDL] Hybrid battery reconditioning
On 17 Nov 2014 at 8:37, paul dove via EV wrote:
You all need to read the link I posted.
It explains how to recondition Nickle based batteries.
It also explains the failure mechanism and why this works.
I did
On Nov 17, 2014, at 1:28 PM, Lee Hart via EV ev@lists.evdl.org wrote:
Or, you can build my Battery Balancer (or something like it -- the plans are
open source and on the web). It does what any battery tester has to do:
Select a battery or module, charge it under known conditions, discharge
Ben,
There are probably no definitive limits to either battery balancer or BMS.
To me a BMS also manages charge and discharge cut off, as well as
balancing. I suppose it could also have a built in charger, but that is not
what I think when someone says, that there BMS. There are notification
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