Planning EV Charging Routes for Road Trips
Why Route Planning Matters
Unlike gas vehicles that can refuel almost anywhere, EVs require advance planning for long trips. Proper route planning ensures:
- No range anxiety - you know where to charge
- Efficient travel - minimize charging time
- Backup options - alternatives if stations are full/broken
- Cost control - find best pricing along your route
With good planning, EV road trips are just as easy as gas vehicles - and often cheaper!
Quick Start: 5-Step Route Planning
1. Know your EV's real-world range
- Not EPA rating - real highway range at 70 MPH
- Typically 70-80% of EPA range
2. Find charging stations along route
- Use SpotCharge to search your destination
- Filter for DC Fast charging
- Check connector compatibility
3. Plan stops every 100-150 miles
- Charge to 80% (not 100%)
- 20-30 minute stops
4. Identify backup stations
- 2nd option near each planned stop
- In case primary is full or broken
5. Save your route
- Add stations to Favorites
- Download offline maps
- Share with travel companions
Step 1: Know Your EV's Range
Real-World Range vs. EPA Rating
EPA ratings are optimistic. Real highway range (70-75 MPH) is typically lower.
Example (2023 Ford Mustang Mach-E Extended Range):
- EPA rating: 312 miles
- Real highway range: 240-260 miles (77-83% of EPA)
- Plan for: 240 miles between charges (conservative)
Factors that reduce range:
- Highway speeds (65+ MPH)
- Cold weather (10-30% reduction)
- Hot weather with AC (5-15% reduction)
- Headwinds
- Hilly terrain
- Roof cargo (bikes, boxes)
Buffer rule: Plan for 70% of EPA range in winter, 80% in summer.
Calculate Your Usable Range
Formula: Usable range = (EPA range × 0.75) × 0.80
Why 0.80? Don't charge to 100% or drive to 0%. Use the 20-80% range for fastest charging.
Example:
- EPA range: 300 miles
- Highway adjustment: 300 × 0.75 = 225 miles
- 20-80% buffer: 225 × 0.60 = 135 miles
- Plan stops every: 120 miles (with safety margin)
Step 2: Find Charging Stations
Using SpotCharge to Plan
Step-by-step:
1. Search your destination:
- Go to /locations
- Enter your destination city/area
- See all stations along your route
2. Apply filters:
- Connector type: Select your EV's DC fast connector (CCS, CHAdeMO, or Tesla)
- Charging speed: Select "DC Fast" only
- Network: (Optional) Filter by preferred network
3. Identify clusters:
- Look for areas with multiple DC fast chargers
- These become your charging stops
4. Check station details:
- Number of stalls (4+ is ideal)
- Power output (100+ kW preferred)
- Hours of operation (24/7 best for road trips)
- Recent reviews (reliability)
5. Save to Favorites:
- Click heart icon on each station
- Build your charging route list
Ideal Station Spacing
Every 100-150 miles:
- Allows charging from 20-30% to 80%
- Keeps you in the "fast charging" range
- Provides buffer for detours
Don't space stations more than:
- 150 miles in summer (good conditions)
- 120 miles in winter (reduced range)
- 100 miles in mountains or extreme weather
Step 3: Plan Your Charging Stops
The 80% Rule for Road Trips
Why stop at 80%?
- Charging slows dramatically after 80%
- 80-100% takes as long as 20-80%
- You'll spend less total time charging
Example (Electrify America 350 kW charger):
- 10-80% (70% added): 28 minutes
- 80-100% (20% added): 25 minutes
- Total: 53 minutes to 100%
Better strategy:
- Charge to 80% (28 min)
- Drive 120 miles
- Charge to 80% again (28 min)
- Total travel: Faster + more flexible
Optimal Charging Strategy
Arrive at charger: 10-20% battery Charge to: 80% battery Time at charger: 20-35 minutes (depending on charger speed and EV) Distance to next charger: 100-140 miles
This keeps you in the "fast charging sweet spot" where charging is quickest.
Choosing Charging Locations
Best charging stop locations:
✓ Highway rest areas
- Convenient restroom access
- Food options
- Safe, well-lit
✓ Shopping centers
- Walk around while charging
- Grab snacks or coffee
- Restrooms available
✓ Grocery stores
- Restock supplies
- Quick meal
- Productive use of charging time
✓ Hotels/restaurants
- Meal stop + charge
- Overlap with breaks you'd take anyway
Avoid:
- Sketchy areas at night
- Isolated locations
- Stations with only 1-2 stalls (higher risk of all occupied)
Step 4: Build in Redundancy
Always Have a Backup Plan
For each charging stop, identify:
- Primary station: Your planned stop
- Backup station: Alternative within 10-20 miles
- Emergency option: Any charger within range if both fail
Why you need backups:
- Stations may be fully occupied
- Equipment can be broken
- Unexpected detours
- Slower-than-expected charging
Using SpotCharge for Backups
While planning:
- Find your primary station
- Search nearby area (10-20 mile radius)
- Save 2nd and 3rd options to Favorites
- Note distance between options
On the road: If primary station is full/broken, you have alternatives already researched and saved.
Step 5: Before You Leave
Pre-Trip Checklist
3-7 Days Before:
- [ ] Plan full route with charging stops
- [ ] Save all stations (primary + backups) to Favorites
- [ ] Download charging network apps you'll need
- [ ] Add payment methods to all apps
- [ ] Check weather forecast for your route
- [ ] Read recent reviews of planned stations
Day Before:
- [ ] Charge to 100% at home (for departure only)
- [ ] Verify all charging apps work
- [ ] Check station status in network apps
- [ ] Re-check weather (adjust plans if severe)
- [ ] Pack emergency supplies (see below)
Day Of:
- [ ] Start with full charge
- [ ] Share your route with someone
- [ ] Enable location sharing (family/friends)
- [ ] Have offline maps downloaded
- [ ] Bring charging adapters if needed
Emergency Supplies
What to pack:
- Mobile charger (Level 1/2) for emergencies
- Extension cord (50 ft)
- Charging adapters (if applicable)
- External phone battery
- Paper copy of charging route
- Roadside assistance info
Nice to have:
- Cooler with snacks/drinks
- Entertainment (books, tablets)
- Blanket (if winter)
- Camping chair (for waiting)
On the Road: Execution
Arrival at Charging Station
When you arrive:
- Open network app and locate charger
- Choose a working stall (check screen)
- Park and plug in
- Start charging session in app
- Set alarm for estimated completion
- Use the time productively
If station is full:
- Check network app for wait times
- Go to backup station
- Call ahead to restaurants/hotels to ask if they have chargers
While Charging
Productive 20-30 minute activities:
- Meal or snack
- Restroom break
- Walk/stretch (long drives are tiring)
- Check upcoming route
- Verify next station is operational
- Respond to messages
- Quick shopping
Set notifications: All charging apps can alert you when:
- Charging completes
- Battery reaches target %
- Idle fees are about to start
Monitoring Your Charge
Track your progress:
- How fast is charging? (kW rate)
- Estimated time to 80%
- Current battery %
- Cost so far
If charging is slow:
- Check charger screen for power output
- Cold battery? (Precondition before arriving)
- Charger sharing power? (Some stations split output)
- Consider moving to different stall
Departure Checklist
Before unplugging:
- [ ] Charging reached target % (80%)
- [ ] Unplugged safely (press button, wait for release)
- [ ] Cable returned to holster neatly
- [ ] Charging session ended in app
- [ ] Receipt received (email)
- [ ] Nothing left behind
Common Route Planning Mistakes
❌ Mistake 1: Charging to 100% at every stop
- Why bad: Wastes time (slow charging 80-100%)
- Fix: Charge to 80%, drive, repeat
❌ Mistake 2: Spacing stations based on EPA range
- Why bad: Real range is lower, especially highway
- Fix: Use 70-80% of EPA range for planning
❌ Mistake 3: No backup plan
- Why bad: If station is down, you're stranded
- Fix: Always have 2nd option within range
❌ Mistake 4: Ignoring weather
- Why bad: Cold reduces range 20-30%
- Fix: Plan closer stops in winter
❌ Mistake 5: Arriving with 5% battery
- Why bad: No margin for error if station is full/broken
- Fix: Arrive with 15-20% minimum
❌ Mistake 6: Relying on Level 2 for road trips
- Why bad: Takes 6-10 hours to charge
- Fix: Use DC fast charging only
❌ Mistake 7: Not downloading network apps ahead of time
- Why bad: Setup takes 10+ minutes, may need WiFi
- Fix: Install and configure all apps before trip
Advanced Tips
Preconditioning Your Battery
What it is: Warming your battery before DC fast charging for optimal speed.
How to do it:
- Enter destination charger in car's navigation
- Car automatically preconditions battery
- Arrive with warm battery = faster charging
Benefit: Can reduce charging time by 5-10 minutes.
Time of Day Considerations
Best times to charge:
- Mid-morning (9-11 AM) - stations less busy
- Mid-afternoon (2-4 PM) - after lunch rush
- Late evening (after 9 PM) - very few users
Avoid:
- Lunch hour (11 AM-1 PM) - peak usage
- Late afternoon commute (4-7 PM) - busiest
- Holiday weekends - plan extra time
Seasonal Adjustments
Winter planning:
- Add 20-30% more charging stops
- Preheat cabin while plugged in
- Precondition battery before DC fast charging
- Keep battery above 20% (cold reduces power)
Summer planning:
- Less range impact (5-15% with AC)
- Stay hydrated during charging waits
- Park in shade if possible (cabin cooling while parked uses energy)
Route Planning Tools
SpotCharge features:
- Search by city/route
- Filter by connector type, speed, network
- Save favorites
- Read reviews for reliability
- See photos of station locations
Other helpful tools:
- A Better Route Planner (ABRP): EV-specific route planning
- PlugShare: Community-sourced charger map
- Your EV's navigation: Built-in route planning
- Network apps: Electrify America, EVgo, ChargePoint (real-time status)
Example Route Plan
Trip: San Francisco to Los Angeles (383 miles) Vehicle: 2023 Tesla Model 3 Long Range (EPA: 358 miles) Real highway range: 280 miles Strategy: 2 charging stops, 20-80% charging
Route:
Start: San Francisco (100% charge)
- Drive 140 miles
Stop 1: Kettleman City Supercharger (arrive ~25%)
- Charge to 80% (25 minutes)
- Restroom, coffee, walk
- Drive 120 miles
Stop 2: Santa Nella Supercharger (arrive ~30%)
- Charge to 80% (22 minutes)
- Quick snack, stretch
- Drive 123 miles
Arrive: Los Angeles (arrive ~30%)
- Charge overnight at hotel or destination
Total charging time: 47 minutes Total trip time: ~6.5 hours (including charging)
Backup stations:
- Stop 1 backup: Harris Ranch (10 miles north)
- Stop 2 backup: Los Banos (15 miles south)
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