Batteries, Battery Systems, Battery Submodules, Battery Operational Methods, Battery System Operational Methods, Battery Charging Methods, and Battery System Charging Methods

A battery comprising:

• a first battery terminal;
• a second battery terminal;
• a plurality of submodules individually comprising a plurality of rechargeable cells electrically coupled between the first and second battery terminals and wherein the rechargeable cells receive charging electrical energy from at least one of the first and second battery terminals;
• and
• control circuitry configured to monitor the rechargeable cells of the submodules and to use the monitoring to control the application of different amounts of the charging electrical energy to the rechargeable cells of different ones of the submodules.

A battery operational method comprising:

• electrically coupling a plurality of rechargeable cells of a plurality of submodules with a terminal which is coupled with an external device at a first moment in time;
• conducting electrical energy between the external device and the rechargeable cells of the submodules during the electrically coupling;
• and
• electrically isolating the rechargeable cells of one of the submodules from the terminal at a second moment in time.

A battery operational method comprising:

• supplying electrical energy to a plurality of rechargeable cells of a plurality of submodules of a battery;
• discharging the rechargeable cells of the submodules of the battery;
• and
• storing information regarding the rechargeable cells of one of the submodules using storage circuitry of the one of the submodules.