So i appear to be having the same problem as most others who have one of the new BMS from Besttech. The E-Switch has failed within 1mile of getting my battery back in my board…
I have had advice from @pjotr47 but i dont want to bother him with everything as he is so helpful.
Backgrounds info… I have a 12s4p, Unity, bestech BMS
It appears the e-switch is broken/blown within 1 mile of riding !!!
The power switch will only work when i plug in the charger.
So my questions for anybody who is an expert…
1- i need to change the battery to discharge directly. (cut negative wire (1), open wire casing (wire 2) solder to wire 1 to wire 2. (now i will have direct discharge.)
What im confused by;
2- do i need a loopkey for direct discharge?? -------- most people say unessesary and Andy87(loopkey) says he doesnt bother with 1… sounds unessesary???
3- Do i need to do anything with the eswitch wire on the BMS? cut it and leave or connect it only when charging?(considering it will be direct discharge circuit now?
its question 3 im really struggling to find clear info on…