Hi Bill, Thanks for the commnet. I have no connection with testing the last 5 years so I was wondering. You probably have more reason to care about this than almost anyone. 1C huh? That is not stressful at all and only are truly sh#t cell would have much trouble with that.
Isn't it lovely that everyone settled on a standard of testing that is hard to fail, and informs almost nothing about the quality of design or manufacture. You said: "You need some test that is uniform for all manufacturers." I must disagree. This is the thinking that has us many decades along the way with no good way to compare battery cells. We need to note this for what it is, a bad paradigm. The problem is you can't really compare batteries based on some simple criteria. If you dig into the Dalhousie research, you can see that the more complete and useful picture has a lot of detail. Medtronic and Tesla are two for the larger contributors to proprietary research. Both wanted to do a lot more than simply compete with existing tech. Medtronic wanted cells you can implant in a human body and have it do work for decades without failure. Tesla the same, but implant them in automobiles. Neither was really selling the cells *per** se*. Instead they were trying to make a higher order design better. I think maybe the testing protocols should be developed with a lot less input from the manufacturers. Fox guarding the henhouse and all that. Mike On Thu, Apr 16, 2020 at 9:04 PM Bill Dube via EV <ev@lists.evdl.org> wrote: > This 1C test is the standard test that allows inter-comparison of cells > from brand to brand. > You need some sort of a test under standard > conditions, for different size cells, for different voltage cells, etc. > * You need some test that is uniform for all manufacturers.* This is the > test everyone settled on. SNIP > -- Michael E. Ross (919) 585-6737 Land (919) 901-2805 Cell and Text (919) 576-0824 <https://www.google.com/voice/b/0?pli=1#phones> Tablet, Google Phone and Text -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20200417/87378c18/attachment.html> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub ARCHIVE: http://www.evdl.org/archive/index.html INFO: http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
