Hi Folks Shelor Chevy in Christiansburg Va finally caved in to me requesting a battery replacement on my 2020 Bolt EV after 2 weeks and ordered the replacement battery. GM is still not requiring 80% charge for local trips like all other EV manufacturers using NMC lithium batteries. Online I see LiFePo4 batteries that are less sensitive to 100% continuous charging being used on some new EUVs and then also see nickel -nmc being added to new and replacement packs. Does anyone know what final lithium based chemistry that GM has decided on to allow full 100% charging every time without longevity problems? Just curious what new chemistry I’m getting in the next month when they install the new battery and how best to treat it for longevity. Battery university.com indicates that LeFePo4 is more tolerant of constant full charge - so I ordered some for my Bergey wind/solar backup that keeps a float 28.2V (is adjustable) on 24V 380ah batteries. Hopefully will last 10 years or so instead of the Interstate flooded lead L16’s that had open cells in 5 years. Best regards Mark in Roanoke VA
https://static.nhtsa.gov/odi/tsbs/2021/MC-10200142-9999.pdf Sent from my iPhone _______________________________________________ Address messages to ev@lists.evdl.org No other addresses in TO and CC fields HELP: http://www.evdl.org/help/
