Electric BuddyExplore the published research
Search our dated operator price directory, or read documented stops on I-10, I-35, I-75 and I-95. Each observation includes its official source, check and expiry; energy subtotals exclude unknown additional fees.
Choose a usable stop before choosing a cheap one
For an interstate trip, start by checking that the station fits your vehicle and your arrival plan. A low price is of little use if the connector is incompatible, the property is closed, or reaching it requires a detour you cannot comfortably make. Search around a city or ZIP in the station finder, select your charging level, and inspect connector and access details before comparing prices.
Highway travel centers can be convenient places to combine charging with a meal or restroom break, but a familiar store brand does not establish charger ownership, hours, or price. Check the specific charging site. Two chargers on the same property can belong to different operators and use different billing rules.
Calculate the energy you actually intend to buy
Use your vehicle’s route planner and arrival estimate to decide how much energy you need for the next leg. Electric Buddy compares the energy amount you enter; it does not predict your driving range. Weather, speed, elevation, load, and vehicle efficiency can change that range.
For a worked illustration, suppose your usable battery capacity is 80 kWh and you want to move from 20% to 70%. The battery-energy difference is 80 × (0.70 − 0.20) = 40 kWh. Energy billed by the charger can exceed that difference because charging is not lossless. Use the charger’s delivered-energy estimate when available, and leave the vehicle’s recommended route reserve intact.
A lower energy rate can lose after a session fee
| Option | Energy rate | Session fee | Cost for 40 kWh |
|---|---|---|---|
| A | $0.45/kWh | $0 | $18.00 |
| B | $0.38/kWh | $3 | $18.20 |
Option B saves seven cents per kWh but adds three dollars every session. Its break-even energy is $3 ÷ $0.07, or about 42.86 kWh. Below that amount, A costs less; above it, B costs less, assuming no other charges. This is why the amount of energy matters as much as the headline rate.
Put the two rates and fees into the cost calculator. Taxes and parking still need a separate check. A detour’s extra energy use also reduces any savings; Electric Buddy does not add that travel cost automatically.
Do not compare minutes directly with kWh
Suppose a time-billed charger costs $0.30 per minute and your session lasts 30 minutes. The energy charge is $9. If it delivers 20 kWh, the effective rate is $0.45/kWh. If it delivers only 12 kWh, the effective rate is $0.75/kWh. The same displayed price produces different energy costs.
Do not estimate that session using the charger’s maximum kW throughout. Your vehicle limits the power it accepts, and charging power can fall as the battery fills. The Department of Energy distinguishes power and charging levels in its charging infrastructure guide. A faster-rated stall does not promise a particular stop duration.
Check the terms for your arrival time
A time-of-day discount applies only during its stated window. A membership price applies only if you qualify, and a promotional rate may require a particular location or event. If you cannot establish those conditions, compare the applicable public price or leave the cost unknown.
Idle and parking fees can outweigh a small energy saving. An idle fee may begin when charging ends, after a grace period, or after a fixed occupancy period. Those are different triggers. Read the site’s rule and set a reminder to move your vehicle; do not assume that leaving it connected prevents an idle charge.
A practical departure check
- Confirm the exact address and charging entrance in your navigation app.
- Check compatibility, current operator availability, access hours, and any parking restrictions.
- Read the current rate and fees on the operator’s screen before starting.
- Keep a backup compatible stop in your vehicle’s route plan.
- Before leaving, verify that your vehicle’s route estimate includes enough reserve for the next leg.
Electric Buddy’s directory and sourced rates help narrow your choices. They do not reserve a charger or provide live stall-status guarantees. Make route decisions and use the app while safely parked.
Written by Broadway Pixels, LLC. Reviewed October 11, 2026. Examples are original calculations with assumed rates; they are not offers from charging operators.