A method of offering or providing batteries for a hybrid or electric vehicle allows the customer to choose a vehicle electrical battery power rating that will match their expected driving range needs. Specifically, the method includes offering different modular battery packs for an electric or hybrid electric vehicle. Each of the different modular battery packs has a different number of interconnected batteries, a different energy level, and is configured to be operable for providing propulsion power to the vehicle. At least one of the different modular battery packs is installed on the hybrid or electric vehicle. The method may include recharging and/or recycling used battery back modules.