Bestech D140 and its different versions

Hi guys,

I got this 12S Bestech D140 BMS a while back and comparing this to the one you can buy at BKB or anywhere else there are significant less parts on it!? Are there several versions of the 12S D140 or are those simply different iterations? I am a bit confused …


How mine looks like: image

How the D140 looks like image

I was worried about that too once. Yours is for less charging amps. They range from 5 to 15 amps or perhaps more even.