A question we get at least once a week: “Can I just park my Tesla next to the dead one and transfer some charge?” The short answer: no, not between two regular Teslas. The longer answer is more interesting. Some EVs can charge other EVs. It’s a real feature with a name (V2L, vehicle-to-load), and it’s how modern mobile roadside rescue actually works.
Here’s the honest breakdown of what’s possible today.
The physics of EV-to-EV charging
Every EV has a huge battery pack full of stored energy. On paper, transferring some of it to another EV is a battery-to-battery problem — not fundamentally different from jumping a 12V.
In practice, the problem is the interface. To get energy out of the traction pack and into a form another EV can accept, you need three things:
- An inverter that converts DC pack voltage to AC (or to a different DC level).
- A physical outlet or port that exposes the AC or DC.
- A cable that plugs into the other car’s charge port (NACS or CCS).
Most EVs have the first one internally (for running HVAC, the 12V, etc.) but don’t route it to an external outlet. Without the outlet, the energy stays inside.
A growing number of EVs do have the outlet. Those are the ones that can charge other EVs — and other things.
Which EVs can export power today
| Vehicle | Export capability | Max output | NACS/standard outlet |
|---|---|---|---|
| Tesla Cybertruck | Pro Power bed + frunk outlets | 9.6 kW (240V) | NEMA 14-50 and 120V |
| Ford F-150 Lightning | Pro Power Onboard | 2.4 kW standard / 9.6 kW extended | Bed and cab outlets |
| Hyundai Ioniq 5 | V2L adapter | 3.6 kW | Adapter converts charge port |
| Kia EV6 and EV9 | V2L adapter | 3.6 kW | Adapter converts charge port |
| Rivian R1T / R1S (with Camp Package) | 120V bed outlets | 1.4 kW | 120V only |
| Tesla Model 3 / Y / S / X | None | — | Cannot export |
| Chevrolet Silverado EV | Power Takeoff | 10.2 kW | Multiple outlets |
| Lucid Air | None (currently) | — | — |
A pattern emerges: EVs marketed at truck buyers and adventure buyers export power. EVs marketed at commuters (most Teslas, Mach-E, Polestar) don’t.
Why regular Teslas can’t charge another Tesla
This is the question we get most. It comes down to hardware choices Tesla made early.
Model 3, Y, S, and X have onboard chargers — electronics that convert AC from a charger into DC for the pack. They do not have an inverter designed to run in reverse at meaningful power. The 12V pigtail at the tow-eye puts out 12V, not 240V, and only at current levels appropriate for waking another car’s 12V — not charging a traction pack.
Tesla has demonstrated bidirectional capability in lab videos and mentioned it in investor calls. For the current fleet, it’s not a feature.
Why the Cybertruck is different
The Cybertruck has Pro Power Onboard — a set of real outlets in the bed and frunk. The bed-wall outlet on the driver’s side rear corner is a 240V NEMA 14-50, the same as a dryer outlet, rated for up to 9.6 kW continuous.
That’s enough to run:
- A standard Level 2 EV charger (J1772 or NACS) at near-full speed.
- Portable tools, job-site equipment, or a small building.
- Medical equipment in a power outage.
For EV rescue, we plug a 50-foot NACS cable into the Cybertruck bed outlet, and into the stranded Tesla’s charge port. The Cybertruck’s pack delivers 9.6 kW of AC through the stranded car’s onboard charger. That’s about 30 miles of range per hour.
How fast is EV-to-EV charging, really
Roughly:
- Cybertruck (9.6 kW) to a Tesla: ~30 miles per hour of charging. We add 10 to 20 miles in 15 to 30 minutes.
- Ford Lightning Extended (9.6 kW) to another EV: same, ~30 miles per hour.
- Ioniq 5 or EV6 V2L (3.6 kW): ~10 miles per hour. Useful in a pinch, slow for real rescue.
- Rivian 120V (1.4 kW): ~4 miles per hour. Not useful for range rescue — more for running a coffee maker at camp.
For comparison, a Supercharger delivers 150 to 250 kW — literally 20x faster than any current bidirectional EV. That’s why mobile charging is a bridge tool (get you 20 miles to a Supercharger), not a destination tool.
Why 240V AC is the sweet spot for rescue
You might wonder why we don’t roll a DC fast charger on a truck. A few reasons:
- Size. DC fast chargers need kilowatt-scale power electronics. The lightest commercial mobile DCFC units weigh 2,000+ pounds and cost $80,000+.
- Safety. High-voltage DC transfer on an open shoulder is genuinely risky. 240V AC through the car’s own onboard charger uses the vehicle’s native safety systems.
- Cable handling. A 50-foot NACS cable at 9.6 kW is two-person-liftable. A DC cable at 150 kW is thick, stiff, and heavy.
- Enough speed to matter. Adding 20 miles in 20 minutes gets you to real infrastructure. That’s what rescue needs to do.
240V AC via the Cybertruck bed outlet hits the practical sweet spot.
High-power AC between vehicles involves hot conductors, ground bonding considerations, and specific cable specs. An off-the-shelf dryer extension cord and a Level 2 portable charger is not the same as a properly specced bidirectional setup. The convenience of doing it yourself isn’t worth a GFCI trip, a melted connector, or a hurt person.
The future: V2V and V2G standards
Tesla and most other automakers have signaled that bidirectional charging is coming to passenger EVs. Ford already offers V2H (vehicle-to-home) backup on Lightning with the Sunrun kit. Tesla demonstrated V2H at a 2023 investor day. Kia, Hyundai, and GM have all shipped V2L or V2G hardware.
Practical takeaway: in 5 years, most EVs sold new will be able to share power. Today, it’s a feature of select trucks and a handful of Korean sedans/SUVs. Plan your rescue strategy around what’s actually on the road now.
Bottom line
Regular Teslas cannot charge other Teslas. Cybertrucks can, and so can F-150 Lightnings, and so can any EV with a real 240V export outlet. For stranded EVs in San Diego County, that’s us — a Cybertruck with a 50-foot NACS cable and a practiced process.
If you’re curious about what we do, see our mobile EV charging and out-of-charge recovery pages. If you’re stranded right now, call (858) 400-8901.
Need a charge in San Diego County? Call (858) 400-8901. We’ll be there with 9.6 kW of Cybertruck power and enough cable to reach you wherever you stopped.