Bestech BMS won't charge (HCX-D596LI10S80A-04)

ESK8 Electronics
1

Got the BMS, but I have some trouble getting it to work properly.

I have wired it accordingly to the diagram (https://www.electric-skateboard.builders/t/bestech-hcx-d596-the-new-80a-bms-wiring/41047).

When I connect the balance plug, it get’s extremely warm in the area with the switch/temperature connectors. It randomly charges for some seconds.

If I then press my fingers on the connectors for the e-switch and the temperature sensor it’s charing as long as I hold my fingers there.

You can watch a video here: https://youtu.be/YsCl8QrF4TM

Attaching some photos as well.

Any ideas?

PNG IMG_9621%20(1)

2

are you charging with the BMS turned on (i.e. the e-switch is in the closed position)?

1 Like
3

As @DavidBanner said, the bms needs to be turned on for charging, and for the bms to be turned on the 2 white wires needs to be shorted

^this is usually done with a latched switch but you could also just solder the two wires together.

4

Yes, the two wires are connected.

There is actually no difference if they are connected or not. It starts to charge when i put my fingers on the 4 solder point’s on the bottom, but the area is so warm that I cannot hold for a ling time :frowning: