What is the maximum total value that can be stored on an existing Ventra card?

The maximum total value that can be stored on an existing Ventra card is indeed $300. This limit is set to ensure that users have a cap on the amount of balance they can keep on their transit cards, thereby managing funds effectively and contributing to the ease of transactions.

For context, the Ventra card system is designed to facilitate public transportation payments in Chicago, and maintaining a limit helps both the transit authority and riders minimize the risks associated with losing a card out of which a larger amount might be lost if not protected properly. This maximum balance makes it convenient for users to recharge their cards without having to keep track of excessively large amounts, thus helping streamline the user experience.