GL MiFi battery board chip or protocol

Hello,
Can you tell me the chip or comm protocol to communicate with the battery protection board? Not through the MiFi.

I have over 300 MiFi batteries as my use case removes the batteries. I would like to repurpose them with my arduino projects.

I know it’s i2C and yellow is clock and green data.

Can you drop us an email support at gl-inet.com and we will try to help.