I’ve just completed my first build using a bestech 10s BMS and everything is working well apart from the board won’t charge.
I checked all my connections and everything is correct apart from the voltage output from the charger.
I bought the charger from ebay (no longer listed), which was sold as a 42v 2A balance board/segway charger and that’s what it says on the charger itself but I measured it as 24v? Is this expected from a charger or did I get ripped off?
Thanks
Do the electronics turn on? Whats the battery voltage?
Electronics turn on, motors spin. Battery voltage is ~32v
Then you got ripped off, just tell eBay not as advertised / you did not receive it
Thanks for confirming that, very frustrating! I was hoping to go for my first ride today.
One more thing, try charging with the bms on if it does not work try with it turned off
I did not try this new model so do not know…
I have given it a go, there is no connection when it is turned off and I have been trying with on. Will have to see if I can source a charger locally today.
It is standard with Bestech bms that have a built in E-switch that the switch must be on when charging.
@TrainRider If your charger is not outputting 42v then it is defective or mislabeled.
Okay, so I got a new charger, 42v 2A. Plugged everything in it charged for about 5 seconds then popped a capacitor… Tripled checked my wiring everything looks correct. I’m at a loss to know what do to.
Post a picture of your wiring.
That wiring is so messy that it’s giving hard times to see what goes where. Can u post better pic from batteries? Those look kinda weird to me.
I know that the batteries work and are wired correctly as they have the right voltage and I have had the motors spinning. I didn’t post the battery pack as the wires are the wrong colors and I didn’t want to cause confusion, black is positive and red negative but here it is anyway:
Balance leads are reading correctly between BMS negative terminal and the end of the balance lead. I have labelled on the first picture in which order they are wired and where the first and last leads are connected.
Where did you buy both chargers?
Does the second one not work either?
Plugged it in, 5 seconds later it popped a capacitor.
Return it, thats not your fault
I’m 3 chargers in at this point, I have to be doing something wrong.
