BMS confussion 16S or 17S -- CF-20S90A-A

Batteries, Chargers, and Battery Management Systems.
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damnub   1 µW

1 µW
Posts: 4
Joined: Apr 21 2019 8:45am

BMS confussion 16S or 17S -- CF-20S90A-A

Post by damnub » Jun 01 2019 9:10am

Hello!

I wanted to wire up my (what i thought was 16s) BMS to my 16S Li-ion pack but Im thinking that it might be 17s. The serial number is CF-20S90A-A. which would be 20S but 3 diodes are not soldered. Image

The balance wires are also confusing to me, it has 19 pins but 2 of them are seperate:
Image

the only wiring diagram i found online is this one: Image

Here is the full album of images: https://imgur.com/a/qqUmyvR

Im wondering if anyone here used the same bms and has some tips.

Thanks for reading all of this.

evwayne   1 µW

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Posts: 1
Joined: Aug 07 2019 9:09am

Re: BMS confussion 16S or 17S -- CF-20S90A-A

Post by evwayne » Aug 07 2019 9:21am

yeah bro, i've got the same board with same confusion with same problem. i've ordered 16S BMS, and they send me this. and it already took 1 month to get delivered, now I'm stuck with this. kindly help me if anyone have the any idea about how to connect this.
my mail id: lyricsworld96@gmail.com
and
this is where I bought : https://www.banggood.in/60V-16S-45A-Li- ... rehouse=CN
Thank you in Advance guys.
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WhatsApp Image 2019-08-07 at 6.48.53 PM.jpeg
WhatsApp Image 2019-08-07 at 6.48.53 PM.jpeg (38.39 KiB) Viewed 112 times
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damnub   1 µW

1 µW
Posts: 4
Joined: Apr 21 2019 8:45am

Re: BMS confussion 16S or 17S -- CF-20S90A-A

Post by damnub » Aug 07 2019 12:10pm

ahh exact same problems I see..

I actually fixed it by buying another 16s BMS with clear instructions, kinda the cowards way out but atleast my battery is charging right now!

I bought this one: https://nl.aliexpress.com/item/32889172 ... 4c4d6oB16y
it arrived with a instructions printed on paper.

I dont know where you are located but a tip, if you select aliexpress priority shipping it arrives in 5 work days (to me atleast) and its only 50 cents more :)

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