A business EV charging sign should say five things: who may charge, how to start a session, how long a car may stay, what to do when charging finishes, and who to contact if something is wrong. Most day-to-day problems at business chargers — blocked bays, non-customers plugging in, cables left across walkways — are signage problems, not hardware problems. A clear sign and a short set of rules, set before the first driver arrives, prevent nearly all of them.
Key Takeaways
- A charger sign needs five items: who, how to start, time limit, move when done, and a help contact.
- Every rule needs a reason and an enforcement method, or it will be ignored.
- Keep cables off walkways and check local rules before fixing bay markings.
- Match posted rules to the charger’s access control so they agree.

The Five Things Every Charger Sign Should Say
- Who can charge. “Customers while shopping”, “Staff only”, or “Open to the public” — one line removes most arguments.
- How to start. Name the method plainly: tap a bank card, use the app, ask at reception for an RFID card, or just plug in.
- The time limit. Match it to a normal visit, and state it in hours, not hints.
- When finished, move the car. Say where finished cars should go, and whether an idle fee applies after a grace period.
- Help and faults. A phone number or desk location for a charger that will not start or a cable that will not release.
Put the same wording on your website and in the charger listing, so drivers know the rules before they arrive. Our guide to planning a workplace charging program covers the same ground for staff-only sites.
Rules That Keep Bays Turning Over
Rules only work if each one has a reason and a way to enforce it. These four cover most small sites:
| Rule | Why it exists | How it is enforced |
|---|---|---|
| Charging only — no parking in charging bays | A parked car that is not charging blocks every driver behind it | Signage, bay markings, staff checks |
| Stay limit matched to a visit (e.g. 2–3 hours) | Keeps one car from holding the bay all day | Session limits or idle fees on networked chargers |
| Move the car when charging completes | A finished car gains nothing by staying connected | App notification plus a short grace period |
| Coil the cable and return the connector | Loose cables are a trip hazard and get driven over | A holster beside the charger and a line on the sign |
Businesses that host drivers for longer stays can borrow ideas from EV charging for restaurants and retail, where stay length decides the charger size.
Keep Cables and Walkways Safe
Route cables so they never cross a pedestrian path where they can be tripped over or trapped under a door. If a cable must cross a walkway, use a proper cable cover. Keep the bay clear of bins and displays, and check the connector and cable on a routine round, the same way the commercial charger maintenance checklist describes. Local rules on accessible bays, bay markings and signs vary, so check your local requirements before painting lines or fixing wording in place.
Match the Sign to Your Access Control
The sign and the charger must tell the same story. If the sign says “customers only” but anyone can plug in, the rule is unenforceable; if the charger needs an RFID card, the sign must say where to get one. Networked chargers make this easier: the EV-AC03201T dual-connector AC station uses RFID and OCPP 1.6J, so access, time limits and idle fees are set in software instead of argued at the bay. How access lists and user groups work is explained in RFID and user management for shared EV chargers. More options are on the commercial EV charging page.

Frequently Asked Questions
Can a business reserve its charging bays for customers only?
Yes, on private land the owner sets the terms of use. State the restriction on the sign and, ideally, enforce it with access control such as RFID or an app, so the rule does not depend on staff challenging drivers.
Do free chargers still need rules?
Yes. Free charging attracts longer stays, so a time limit and a move-when-finished rule matter more, not less. The sign also needs to say charging is free, or drivers will assume a payment step is missing.
What if people keep parking in the bay without charging?
Start with clearer markings and wording, then shorten the allowed stay and add session-based control. If the bay sits on land with parking enforcement, ask the operator what evidence they need before issuing penalties.
Related Reading
- How to Plan a Workplace EV Charging Program
- RFID and User Management for Shared EV Chargers
- EV Charging for Restaurants and Retail
- Commercial EV Charger Maintenance Checklist

