EV Road Trip Guides

The reasoning behind the planner, written out. What charging on the road actually costs, why the cheapest charger is often the wrong stop, and how to plan a long trip without either overpaying or stranding yourself.

How Much Does It Cost to Charge an EV on a Road Trip?
What DC fast charging actually costs per 100 miles, why it runs several times your home electricity rate, the fees that don't show up in the per-kWh price, and the handful of decisions that genuinely lower the bill.
How WattWay Plans a Cost-Optimized EV Trip
The full method: how WattWay routes a trip, finds chargers along the corridor, prices each one against your memberships, and greedily picks a low-cost set of stops — plus every assumption it makes, the candidates it never looks at, and what it deliberately doesn't model.
DC Fast Charging Explained: Curves, kW and the 80% Rule
Why EV charging slows down as the battery fills, what the kW numbers on a stall actually mean for your car, why road-trip charges stop at 80%, and how preconditioning can halve a winter charging stop.