A small business with one NACS (Tesla-standard) AC charger can let J1772 vehicles use it by keeping an AC adapter like the JT02 available for staff or visitors. It is a low-cost way to serve more drivers without installing a second charger. Set simple rules: where the adapter is kept, who can borrow it, how it is checked, and that it is for AC use only.
Key Takeaways
- An AC adapter extends one NACS charger to J1772 cars.
- Set simple lending, checking and signage rules.
- Confirm the charger allows all vehicles.
- AC only: never at DC fast chargers.
Why It Makes Sense
Many businesses installed a single NACS charger for an owner’s or manager’s car. As staff and visitors arrive with other EVs, a second charger may seem necessary. An adapter extends the existing charger to J1772 vehicles at a fraction of the cost. Read using a NACS charger for other cars.
Options Compared
| Option | Upfront cost | Serves J1772 cars | Notes |
|---|---|---|---|
| Shared AC adapter | Low | Yes, one at a time | Needs a simple lending process |
| Second charger with J1772 | Higher | Yes, at the same time | More circuits, more capacity |
| Dual-connector or universal charger | Higher | Yes | Plan for future replacement |
For one charger and occasional J1772 users, the adapter is often the sensible first step.
Set Simple Rules
- Keep the adapter at reception or in a lockable box by the charger.
- Log who borrows it, or attach it to a tether if left at the charger.
- Check it weekly for damage and cleanliness.
- Post a sign: AC charging only, never at DC fast chargers.
- Agree whether visitors pay for charging and how.
- Replace it immediately if damaged.
Our guide on planning a workplace charging program has policy ideas, and the best charger for a small business helps if you later add capacity.
Check the Charger’s Access Settings
Some NACS chargers can be configured to allow only certain vehicles or accounts. Confirm your charger is set to serve all vehicles before offering the adapter. Also check the charger’s current setting against the circuit, as usual. A short trial week, with one or two staff members using the adapter and reporting any issues, is a simple way to test the process before you announce it to everyone.
Liability and Safety
Treat the adapter as business equipment, just like a ladder or a power tool that staff borrow. Put it on the asset list, give one person responsibility for it, and keep a spare if many drivers rely on it. Keep it in good condition, provide clear instructions, and include charging in your risk assessment. Read adapter safety.
The JT02 is a NACS-to-J1772 AC adapter rated up to 80 A and 250 V AC, with silver-plated copper terminals and IP65 protection.
Frequently Asked Questions
Can J1772 cars use our NACS charger?
Yes, with a NACS-to-J1772 AC adapter, if the charger is set to serve all vehicles.
Is an adapter cheaper than a second charger?
Usually much cheaper, though only one car can charge at a time.
Can staff take the adapter to a Supercharger?
No. It is for AC charging only; DC stations need equipment approved for that use.
Related Reading
- Can I Use a Tesla Charger for Other Cars?
- How to Plan a Workplace EV Charging Program
- What Is the Best EV Charger for a Small Business? How to Choose
- Are EV Charging Adapters Safe?
