Systems and Methods for Diagnosing Batteries

A method for diagnosing a battery, comprising:

• receiving measured voltages of a plurality of batteries;
• for each battery of the plurality of batteries:
• determining, based on the received measure voltages, a voltage deviation at predetermined time periods;
• determining, based on the determined voltage deviation, a voltage deviation variation at the predetermined periods;
• diagnosing a state of the respective battery by comparing a pattern of the voltage deviation variations of each of the plurality of batteries to a preset diagnosis pattern;
• and
• outputting one or more signals to an external device wherein each signal indicates a battery diagnosis for each battery of the plurality of batteries.