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EV charging glossary

Industry jargon

Battery management system

Also called: BMS A battery management system, or BMS, monitors and protects a battery pack while calculating the limits within which it can charge and discharge safely. It measures battery conditions and uses those measurements to manage operation. In an EV, the BMS can monitor cell or pack voltage, current and temperature, estimate state of charge and state of health, manage thermal conditions and set charging limits. During DC charging, the vehicle uses battery information to tell the charging system what voltage, current or power it can accept. That limit can change throughout the session.

Related terms

State of charge

State of health

Charging curve
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