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On 05/31/2015 10:33 PM, Ben Goren wrote: > On May 31, 2015, at 1:12 PM, Jay Summet via EV <[email protected]> > wrote: > >> The 2013 battery modules do have more "air holes" in them for >> passive thermal heating than the 2011/2012 modules. > > That sparks another interesting thought...would there be any > particularly good place to position a box fan to maximize the > effect of passive cooling? > Not really, because the modules are inside the big steel battery box, and the battery box does not have any are holes. (it has a few pressure equalization vents, but air shouldn't be flowing very fast through them...) I guess if you put a box fan directly under the car blowing up onto the battery box (after removing the plastic under battery box plastic aero panels) it could help, or if you found a hole to blow air in between the aero panels and the battery box....but proably not at all worth the time/effort. > Sounds like a sound plan regardless of whatever other steps they > take to keep the batteries cool. > > Is there any benefit to charging to even less than 80%? I don't belive so. My understanding is that the 20%-80% range is the "safe" range. Anything below 20% or above 80% may lower the battery lifetime. Jay -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iEYEARECAAYFAlVrcvwACgkQSWJjSgPNbM/y1ACfeBZlXaxj1Vp/QreFFnUYfnAp prsAn3n0LCyMhuFytjx+y/KwRBmRczhE =C91L -----END PGP SIGNATURE----- _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
