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8.3.A Definitions
8.3.A.1 Cell: The smallest available source of energy in the battery pack as purchased from a
manufacturer. A single electrochemical cell.
8.3.A.2 Module: The smallest grouping of paralleled cells easily removable in a battery pack.
8.3.A.3 String: The smallest series of modules that make-up the battery pack required voltage.
8.3.A.4 Protection Limit: The measured level determined to be adequate to protect from an event.
8.3.A.5 Active Protection: System in which measurements are constantly monitored and where
actions are taken immediately without operator intervention to open the Main Power Switch should a
Battery Protection Fault occur. Any protection faults will latch such that a manual clearing process is
required by the driver with the vehicle not in motion and only after faults have been verified clear by the
protection system.
8.3.A.6 Passive Protection: System in which measurements are monitored by the driver and where
action is driver controlled.
8.3.A.7 Battery Protection System (BPS): The system that applies Active Protection to protect battery
pack.
8.3.B Types
8.3.B.1 Li-Based: n/a
8.3.B.2 Supplemental:
All supplemental batteries must have at a minimum Passive Protection for
under voltage where charging occurs remote to the solar vehicle unless they are primary cells. Active
Protection is required if charging is within the solar vehicle. No Secondary Lithium battery types shall be
used for the Supplemental Battery unless the Supplemental Battery is powering a commercially procured
component such as a cell phone or laptop and the Supplemental Battery was intended for this purpose.