Do all EV chargers work with all EVs?

Most Level 1 and Level 2 EV chargers are universally compatible within their regional standard:

• North America: J1772 is the standard for all non-Tesla EVs. Tesla uses NACS but includes an adapter for J1772 chargers.
• Europe & many regions: Type 2 (Mennekes) for AC charging.
• India (high-power AC): Type 2 for AC chargers (≥22 kW).

DC fast charging is not universal and depends on connector type:

• NACS (Tesla)
• CCS1 / CCS2 (North America / Europe)
• CHAdeMO (Nissan Leaf, some Japanese EVs)

Can you use EV chargers in other states?

Yes. EV chargers across U.S. states use the same national standards (J1772, CCS1, NACS, CHAdeMO). There is no state-specific restriction on charger operation.

But note:

• Billing may vary by charging network (Electrify America, ChargePoint, EVgo, etc.).
• Some states require price-per-kWh billing; others allow per-minute billing depending on measurement laws.

Can you use two EV chargers at once?

You can plug in two chargers into the same EV only if the vehicle is designed for dual-charging. Very few EVs support this (e.g., some commercial vehicles or prototypes).

However:

• You can charge two different EVs simultaneously if your electrical service supports it.
• You can use power-sharing EVSE systems where multiple chargers share one circuit.

No consumer EV today (Tesla, Ford, Hyundai, VW, BMW, etc.) allows two AC chargers to charge the same battery simultaneously.

Does an EV charger charge the small 12V battery?

Indirectly, yes.

When an EV is plugged into an EVSE, the high-voltage traction battery powers the DC-DC converter, which keeps the 12V battery charged. The EV charger does not charge the 12V battery directly; it only supplies AC power to the vehicle’s onboard charger, which manages all charging systems internally.

• Your 12V system is kept full during charging.
• If your 12V battery is failing, the car may not “wake up” to accept a charge.

Are there EV chargers made for 3-phase 208V electricity?

Yes. Many commercial and industrial buildings in North America use 3-phase 208V power. Level 2 EV chargers designed for this environment support:

• 208V three-phase input (common in commercial parking garages).
• High-power AC charging (9.6 kW to 19.2 kW).
• More stable load distribution for multiple EVSE units.

Most residential chargers are single-phase (240V). Most commercial AC chargers are three-phase compatible.