Create Accurate SoC percent calculations

[jr1221]

Description

Create accurate SoC calcs using online equations for our cells. Should be done in a way easily transferable to 24A.

Acceptance Criteria

SoC is accurate.

Proposed Solution

Use a polynomial approximation or something based on this discharge curve per cell, and then somehow combine that to get overall SoC (probably use low cell?).

[jr1221]

We have calcs they just don't work. Let's fix them