Finally, I have now found a good supplier of BMS (Battery Management System),

As well as a supplier of Solar cells of various models.

I have found a good contact whit a supplier that will help me and my company with Batteries.

I will sell these types of battery cells. 18650, 20700, 21700,32650 Prismatic Cells batteries, although I will also be able to get hold of other types of batteries through my business contact in China.

I will return with more information on what types I will sell. I will also update my website. when I will start selling.
I look forward to selling batteries.