Flight Pack 100% Balancing ?  
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 >> Flight Pack 100% Balancing ?
Page: [1]

Login
Message << Older Topic   Newer Topic >>
Flight Pack 100% Balancing ? - 5/2/2008 2:00:35 PM   
Capt Lou


 

Posts: 179
Joined: 1/3/2007
From: Manahawkin, NJ, USA
Status: offline 		Hello Guys:

I need your experience/expertise in understanding what is a safe level (percentage of balancing) for A123 battery packs. I bought 3 new 2300 mah A123 flight packs. I charged them with a Cellpro 4S charger. When I charged them for the first time, one charged and balanced at 100%. The other two charged but only balanced at 97-98%. I took one of these and put it on my flight system to discharge and brought it down to about 80%, then, I charged it again and it finally balanced at 100%. The third pack I still have to discharge and re-charge. My question is: Is it ok to rely on these battery packs if they balance out at 97-98% without having achieved a 100% balance? I'm new to this technology and don't know if the 2-3% remaining to balance is critical to the flight pack. I'll use these battery packs in a 50cc plane for the ignition and also to run a JR X9303 radio system with the R921 receiver pushing high torque (220 oz) servos. Thank you in advance for any response.

Capt Lou
       Post #: 1

RE: Flight Pack 100% Balancing ? - 5/2/2008 2:46:31 PM   
everydayflyer



Posts: 852
Joined: 8/21/2005
From: Buchanan, GA, USA
Status: offline 		I have found that it often takes 5-15 cycles for the cells/packs to form and stay in balance well.

The less than 5% you are experiencing means nothing in your application.

My experience is if you charge the pack and there is a slight inbalance and you place a load on it of say 2 amps. or more and check the balance will be much closer.


Charles

(in reply to Capt Lou)
       Post #: 2

RE: Flight Pack 100% Balancing ? - 5/2/2008 3:51:36 PM   
Capt Lou


 

Posts: 179
Joined: 1/3/2007
From: Manahawkin, NJ, USA
Status: offline 		Charles:

Thanks for the information

(in reply to everydayflyer)
       Post #: 3

Page:   [1]
All Forums >> Radios, Batteries, Clubhouse and more >> Batteries & Chargers >> A123Racing Support >> Flight Pack 100% Balancing ?
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

0.313RCU1