Strange A123 issue  
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
  Printable Version
       



All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> A123Racing Support >> Strange A123 issue
Page: [1]

Login
Message << Older Topic   Newer Topic >>
Strange A123 issue - 1/14/2008 2:49:20 AM   
GhostRider32


 

Posts: 115
Joined: 11/23/2006
From: NE, TX, USA
Status: online 		Hey all,

I made a 3S1P 2300 pack and for some reason, 1 cell is always about .5 volt higher than the others. How do I get them to balance even? The 0610i gets all 3 cells even at about 3.4v but then the cells spread to approx. 3.7, 3.4 and 3.4 or thereabouts. The cells always discharge to about 2.7, 2.2 and 2.2. Any ideas?
       Post #: 1

RE: Strange A123 issue - 1/14/2008 4:48:30 AM   
SinCityJets



Posts: 783
Joined: 11/13/2005
From: Henderson, NV, USA
Status: offline 		gr,

I wouldn't worry about it too much. If you are balance charging them, that is all you can really do. After having sold well over 500 packs, I have come across cells that start off at 1.5 volts and seen them as high as 3.8 right out of the pack. I would just say you have one REALLY healthy cell!

_____________________________

www.sincityjets.com

A123 Battery Packs / Trigger Valves / Stretchy Covers / Smart-Fly / Fei Bao / JetCat / Jet Central

(in reply to GhostRider32)
       Post #: 2

RE: Strange A123 issue - 1/14/2008 5:00:48 AM   
jasonwang3a



Posts: 69
Joined: 10/18/2006
From: shenzhen, CHINA
Status: offline 		please balance charge your 3S liFe pack with balane charge such as 630B or 680B at www.chargery.com , if the cell voltage is the same after charging over, a few minutes late, the cell voltage beome defferent, please check carefully the cell impedance, if the cell impedance is very different, whether charge or discharge, the cell voltage will be diifferent. so before assembling the battery, it is best to assemble the cells with the same impedance, same voltage and same capacity.

_____________________________

Jason

(in reply to GhostRider32)
       Post #: 3

RE: Strange A123 issue - 1/14/2008 11:01:09 AM   
coro_sk


 

Posts: 18
Joined: 7/24/2007
From: , SLOVAKIA
Status: offline 		You have 0610i which is a good balancing charger, You are not using balancer connection and balance mode?
You can do it at least once..
Good and recommended practice is to fully charge each cell separately when new pack is made, or long time stored pack is brought to life.

(in reply to jasonwang3a)
       Post #: 4

RE: Strange A123 issue - 1/14/2008 12:55:29 PM   
GhostRider32


 

Posts: 115
Joined: 11/23/2006
From: NE, TX, USA
Status: online 		Yes, I sm using the balancer. I will dissassemble the pack to check impedance.

(in reply to coro_sk)
       Post #: 5

Page:   [1]
All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> A123Racing Support >> Strange A123 issue
Page: [1]





Jump to:


Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Member Video Posts | RCU Video Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

© 2001 - 2007 24-7 RC, LLC, all rights reserved.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America

Kaango.com Classifieds

0.281RCU1