On 08/04/2020 12:00 PM, ibdilbert01 via groups.io wrote:
Volt batteries work well, I have two sections @ 48 volts in mine.? ?You really do need BMS on those cells, they are like any other lithium cells.? You can get by with it for the first few years, but after a while some cells will become weaker and without BMS you will shorten the life of your batteries (specifically the weaker cells).? ? The Chevy volt has both passive and active BMS onboard.? GM didn't do this because it "wasn't necessary".? ?A properly configured 48 volt lithium pack will charge to 50.4 volts and shouldn't be discharged below 36 volts.
On a similar note, Chevy didn't install water cooling because it "wasn't necessary", either. Has anyone plumbed up the water channels, along with a small pump, rad, and fan for temperature control while charging, etc, or is the rate of charge/discharge so much slower nobody bothers?
Tom
