[NSRCA-discussion] Birmingham Contest

[Ihncheol Park]

Keith,
 
How well are the cells balanced after parallel charging?
 
Just curious since I don't do high amp parallel charging because of the balancing of cells in different packs.  
 
I also don't know how that parallel board from Revolectrix work.  
 
Ihncheol
--- On Fri, 9/14/12, Keith Hoard <khoard at gmail.com> wrote:


From: Keith Hoard <khoard at gmail.com>
Subject: Re: [NSRCA-discussion] Birmingham Contest
To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
Date: Friday, September 14, 2012, 11:40 AM




It's not electrically possible to read each pack individually if they're connected in parallel.  Thats why every so often you charge a pack by itself. 


Some guys get all wrapped up and teary-eyed about parallel charging because they can't monitor each cell down to the 1/10000 Volt or MOhm every charge.  


The guys that get all apoplectic about parallel charging typically have never tried it, or did something illogical like connecting a brand new fully charged pack in parallel to an old, tired discharged pack and then wonder why it didn't work. 

Sent from my iPhone

On Sep 14, 2012, at 11:31, Archie Stafford <astafford at md.metrocast.net> wrote:





Keith 


I believe his question on RCU is if it will do it while parallel charging and give readings on each pack. 


Will it do that? 


Arch

Sent from my iPhone

On Sep 14, 2012, at 12:27 PM, Keith Hoard <khoard at gmail.com> wrote:





Obviously he doesn't own one or is capable of reading the manual.  When you start a charge, cycle thru the pages until you get to one that says "Calculating Internal Resistance(%)".  After a few seconds, it shows all of the cells IR values throughout the entire cycle. 

Sent from my iPhone

On Sep 14, 2012, at 11:16, Randy Forbus <rforbus at hotmail.com> wrote:







some guy on RCU is saying it wont, he's bashing our chargers!





From: khoard at gmail.com
Date: Fri, 14 Sep 2012 11:09:30 -0500
To: nsrca-discussion at lists.nsrca.org
Subject: Re: [NSRCA-discussion] Birmingham Contest


Yes. I'll show you tomorrow at the field. 

Sent from my iPhone

On Sep 14, 2012, at 10:50, Randy Forbus <rforbus at hotmail.com> wrote:







does our power lab 8's monitor IR





From: khoard at gmail.com
Date: Fri, 14 Sep 2012 10:07:21 -0500
To: nsrca-discussion at lists.nsrca.org
Subject: Re: [NSRCA-discussion] Birmingham Contest


No problem. We'll meet you guys wherever you are!! 

Sent from my iPhone

On Sep 14, 2012, at 10:04, Ronald Van Putte <vanputte at cox.net> wrote:




Poor baby!  Don't you just hate it when you get caught like that?


Ron



On Sep 14, 2012, at 9:51 AM, Keith Hoard wrote:



Oh, so that's how you guys are going to be!!  Move the contest at the last minute!!  If y'all are Skeerd, just say you're Skeeeerd!!

Sent from my iPhone

On Sep 14, 2012, at 9:23, Ronald Van Putte <vanputte at cox.net> wrote:




Hmmmmm.  There won't be an audience to Hoard's Memphis crew's "clinic" in Birmingham, because the contest is in Huntsville.  Reset your GPS units gentlemen.


Ron



On Sep 14, 2012, at 9:16 AM, Keith Hoard wrote:

The Memphis crew is all packed up, practiced and ready to "depart the fix" today.  We'll be "Ringing the School Bell" right after the pilots meeting tomorrow morning and puttin' on a clinic in both Advanced and Intermediate class.  Bring your paper and pencils so y'all can take notes . . .  We don't like to repeat ourselves . . . .

Keith Hoard
Collierville, TN
khoard at gmail.com


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