Hi really need some advide

[Hartjohn]

Hi, am new to the fourm and in need of some help.

I have a stealth bomber clone and for what ever reason now seems to wanna go in to bms mode each time I tap the throttle.

Will go in bms even if I try and run a test via menq app

Spec's are sabvoton controller SVMC72150M

A rubbish 60v battery

27.5 wheels.


Please see attached photos

 

[A-DamW]

A rubbish 60v battery

Well troubleshooting pretty much always starts with the best information you have, get a hold of a better battery or take the bms out of the equation temporarily, like bypass the bms and see if it responds differently.

 

[amberwolf]

What is "BMS mode" for this system?

 

[Hartjohn]

Hi sorry new to this don't really know bms but
sabvoton svmc 7280 is my controller not the one I listed. It cuts battery off soon as I pull the throttle. Then I have to take battery out, unplug the bms charge and so on

 

[amberwolf]

if you have to unplug the bms from the cells to charge the battery, something is wrong with the battery that the bms is trying to protect you against, to keep from starting a fire.

i would measure each of the cell groups in the battery starting at the most negative one, and list all the voltages here. do this right after you have charged, and right after your contorller shuts off before you try to charge again.