I have found these on Ebay, and decided to do test to see how good they are, see this video how.
To support my site use the links below THANKS!
Aliexpress BMS: https://bit.ly/350XFgE
“SMART BMS” from official store Aliexpress Daly BMS: https://bit.ly/2IkIaYu A
liexpress Smart BMS: https://bit.ly/3nJeRPg
spot welder link: https://bit.ly/3nOhsYu
Ebay Daly Smart BMS: https://ebay.to/3lzRQN1