Chemical energy used in propelling cars.   Chemical energy used in storing and releasing electrical (battery) energy.   Mechanical energy used to make electrical power tâ¦o recharge the battery / batteries, and other systems.   Fluid power used to convert engine rpm to driveshaft rpm (in automatic transmissions).
OEM redirects here. For other uses, see OEM (disambiguation) . Original equipment manufacturer (OEM) is a term used when one company makes a part or subsystem that is used in another company's end product. The term is used in several ways each of which is clear in context.
Generally, an OEM is the company that makes a part that is marketed by another company typically as a component of the second company's product. For example, if Acme Manufacturing Co. makes power cords that are used on IBM computers, Acme is the OEM.enerally, an OEM is the company that makes a part that is marketed by another company typically as a component of the second company's product. For example, if Acme Manufacturing Co. makes power cords that are used on IBM computers, Acme is the OEM.