[supergeek]

Gas pumps are larger transactions, so the credit card fees are less of a hit for the business. A level 2 AC charger is about $1 per hour of electricity, so you're taking huge credit card fees for shorter charges.

Most of the apps have some sort of balance that lets you make one $10 transaction and then spend it on a lot of smaller charge sessions.

[gcheong]

That's an interesting wrinkle on what should be an otherwise tractable. Perhaps the government should subsidize the transaction fees in some way like they subsidize the oil companies.

[NavinF]

You must be using an unusual definition of subsidy. Gasoline is heavily taxed just about everywhere.

Anyway shifting around the costs doesn't change the fact that paying ~30% in fees is very inefficient

[joshspankit]

There’s a solution right in the problem: mandate a single “balance card” that pays all EV chargers.

[joshspankit]

Not sure why that gets a downvote. We use this solution all over the place. From transit cards to gift cards you pay a single transaction fee to the credit card company so you can then pay 0 transaction fees on the tiny purchases.