Hey, so I unfortunately left my skateboard on for the night. I have 2x3s so 22.2v and i checked that they are now at 8.6v. I know that at this point it’s better to just throw them away, since it is dangerous to charge them and 1 cell is actually fully dead.
But now I need some help. Is there a way to have a device between the batteries, that cuts the power off, when the batteries come to the cut-off voltage. I have a 12v to 5v adapter also between the vesc and the batteries. Even if I switch the whole thing off, the batteries still discharge.
I did a quick schematic as well.
What for you need that 12V adapter? Did you set cut of voltage in vesc? What kind of switch? Batteries obiviously shouldn’t drain themselves very fast if they aren’t connected anything.
no, i had the xt90 attached, but i want to know that is there a way to have another autoswitch that cuts the power out when the cells are too low. Like the lipo alarm but as a switch.
People use vesc and bms. I think that the fault is your batteries. You have over drained them multiple times or they are faulty in some other way. For example you shorted them in some point.
Im not sure if you can fix these batteries somehow, but if you get new ones go with supower,bestech diebie but this one is a little expensive, bestech ones are great and small, and cost around 20