TMC is an independent, primarily volunteer organization that relies on ad revenue to cover its operating costs. Please consider whitelisting TMC on your ad blocker or making a Paypal contribution here: paypal.me/SupportTMC

Jack may need some adult supervision...

Discussion in 'Energy, Environment, and Policy' started by kennybobby, Nov 8, 2015.

Tags:
  1. kennybobby

    kennybobby Member

    Joined:
    Sep 14, 2014
    Messages:
    479
    Location:
    Heart o' Dixie
    #1 kennybobby, Nov 8, 2015
    Last edited: Nov 8, 2015
  2. GSP

    GSP Member

    Joined:
    Dec 28, 2007
    Messages:
    1,997
    Glad no one was hurt.

    Overcharging a Lithum battery should not be possible, IF the proper precautions are taken. Every battery should have a BMS and seperate contactors for HV positive and negative. The BMS should be designed so that the contactors open before any cell gets overcharged. The design needs to insure this will happen even when there is any failure in the BMS, wiring, or contactors.

    This basic engineering is in every factory EV, and it should be in all conversion EVs as well.

    Of course, we don't always have things as they "should" be, but this situation could be fixed.

    GSP
     
  3. dhrivnak

    dhrivnak Active Member

    Joined:
    Jan 8, 2011
    Messages:
    2,150
    Location:
    NE Tennessee
    I wish things were that simple, as I have seen several cells fail one almost dangerously, as it half melted, due to BMS failures. So yes maybe with the right BMS, but there is junk out there and some of that junk is the BMS itself.
     
  4. ecarfan

    ecarfan Well-Known Member

    Joined:
    Sep 21, 2013
    Messages:
    10,376
    Location:
    San Mateo, CA
    "Jack may need some adult supervision"...and a bit more respect for the importance of a functional BMS.
     

Share This Page