I've heard stories of people interested in Prius Prime, but ending up being disappointed at the dealer because no one bothered to charge the battery. Without that plug-supplied electricity, you don't get the full experience of EV (electric) driving. That's unfortunate. There is a handy solution though.
Using Charge-Mode is a quick means of charging the battery. When you hold the EV/HV, rather than just pushing it, that feature will engage. It instructs the engine to operate beyond just HV (hybrid) mode. The result is electricity generate from gas instead of plugging in.
That isn't the most efficient means of recharging the battery, but it is quite useful when you would like to go for a test-drive but the salesperson was unable to accommodate.
