Which BM IC should I choose?

Hi,

I am trying to choose a suitable SBS 1.1 compliant design for a 4S2P or 4S3P Li-Ion pack. I have googled but been unable to find very many ready-made packs that would suit my needs. I am therefore considering developing my own PCB as a first step.

I have looked at bq20z45 / bq20z65 / bq20z75 / bq20z95 but I have a problem understanding how they relate to each other. I won't need LED or LCD monitoring, so I guess that leaves me with bq20z45 and bq20z75? Which one should I choose with regards to features, price, and market share?

Thanks in advance.

Kind regards

Niclas