Systems and methods for balancing a vehicle battery system

A method for balancing a plurality of sections included in a battery system comprising:

• receiving estimated states of charge of the plurality of sections of the battery system;
• determining that the plurality of sections of the battery system are unbalanced;
• determining whether the estimated states of charge are within one of a first state of charge region, a second state of charge region, and a third state of charge region;
• and
• based on the determination, balancing the plurality of sections of the battery system according to one of a plurality of different balancing algorithms.

A method for balancing a plurality of sections included in a battery system comprising:

• receiving estimated states of charge of the plurality of sections of the battery system;
• determining that the plurality of sections of the battery system are unbalanced;
• determining whether the estimated states of charge are below a threshold;
• and
• based on the determination, balancing a weak section of the plurality of sections together with sections of the plurality of sections having a state of charge lower than the weak section;
• and
• balancing sections of the plurality of sections having a state of charge higher than the weak section independently.