Batteries & Chargers Nicads, Nickel Metal Hydride, Lithium, LiPoly, Chargers, Cyclers, etc...

A123 cell self-discharge rate?

Old 05-30-2007, 12:07 PM
Junior Member
Thread Starter
Join Date: May 2007
Location: , CO
Posts: 1
Likes: 0
Received 0 Likes on 0 Posts
Default A123 cell self-discharge rate?

I've read posts that say I don't have to top off my batteries before a flight even if it's been several days since I charged them.

I've also been told that they discharge faster in higher temperatures. So I did a bit of study on self-discharge and found that many LiPOs discharge as much as 5%/month.

I'm also thinking about using the A123 cells for other applications that need long-term power in remote places. I want to keep spare packs around, but don't know how fast they will discharge by themselves.

Sooooo, maybe Brian can tell me the rate of discharge at various temperatures of at least at room temperature.

Thanks for the help.

Spud J Dog
Old 05-30-2007, 10:52 PM
jasonwang3a's Avatar
Join Date: Oct 2006
Location: shenzhen, CHINA
Posts: 71
Likes: 0
Received 0 Likes on 0 Posts
Default RE: A123 cell self-discharge rate?

according to our tesing, for 2.3AH high rate LiFe cell, the self-discharge rate is 4% of rated capacity per 28days,

the advantage of LiFe cell is safety, the size is bigger than the LiPo cell with the same capacity. for back-up application, this is a shortcoming.

more information, contact me at [email protected]
Old 05-31-2007, 08:37 AM
A123 Racing
Senior Member
Join Date: Aug 2006
Location: Hopkinton, MA
Posts: 102
Likes: 0
Received 0 Likes on 0 Posts
Default RE: A123 cell self-discharge rate?

Hello Spud,

Jason's information is pretty close. We rate the cells at 5% cpacity loss per month. You could easily charge the battery on a Monday and use it on a Saturday. The lost capacity would be negligible. You could leave a pack all winter and it would still perform fairly well right out of the closet.

Let me know if you have any other questions.


Power . Safety . Life


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information -

Copyright 2021 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.