Bestech BMS, where to solder the e-switch

ESK8 Electronics
1

Hey, I just wanted to make sure I solder my e-switch to the right pins on my Bestech BMS. On all the pictures I found there were 4 pins in the soldering location of the white wires and there 2 wires sticking out, but on mine there are only 2 pins and no wires sticking out. Now I’m not sure if I really have the HCX-D223V1 BMS with e-switch (as I was told by the seller) or if there only were a few changes on the design by Bestech.

Bestech BMS1
Bestech BMS12862×2147 2.1 MB
Bestech BMS2
Bestech BMS24048×3036 2.51 MB
On the top left are the 2 pins of the white wires:
Bestech BMS2
Bestech BMS23036×4048 2.81 MB

On all the pictures I found this side looked different and there was writen “fuse” right next to the pins

2

near the wires of that sensor should be something like switch written on the lower pcb if it doesn’t have that you probably got the one without the switch

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3

So here inbetween I guess? No that space crowded with resistors on my BMS…

IMG_20180312_165510
IMG_20180312_1655103036×4048 2.25 MB

4

Seems like a got the wrong BMS then… Do you have any idea which one from Bestech it could be? Thanks a lot for your help though!

5

On the other side of the heatsink it says 24s 60a, I have to get in contact with my seller… I’m sorry for bothering you, I should have found that earlier.

6

Great opitunity to try out 24s man, dont let it go.

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Haha you’re right I got to take advantage of my opportunity. If I solder 2 vescs in series it won’t exceed the limits, this build will be awesome :joy:

8

What seller did you get it from? The HCX-D223V1 is 80a not 60

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9

Yes thats the one I wanted and that I should have got from the seller. I want to copy your 10s LiPo BMS setup btw, thank you for that thread! :slight_smile:

I bought it from pwrboards.com. The seller answered quickly now and I will get the right one. He probably got the wrong one from the manufacturer as he only sells Bestech BMSes with e-switches. I have nothing bad to say against this seller though, the customer service is great and nice :slight_smile:

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