How a Jolt Charger Works

A Jolt charger is an IEC 61851 Mode 3 AC charging station: the vehicle’s onboard charger does the AC-to-DC conversion, and the Jolt unit safely controls and meters the AC supply delivered to it over a Type 2 (IEC 62196) connector.

Inside the charger

Every Jolt unit is built from two cooperating parts:

• The communication controller — the connected “brain.” It handles networking (WiFi / BLE / SIM / LAN), the Jolt Control app, RFID authorization, scheduling, firmware updates, and — on HomePlus and Business — the OCPP 1.6J link to your backend (CSMS).
• The charge controller — the real-time “muscle.” It runs the IEC 61851 control-pilot handshake with the vehicle, drives the contactor that switches power, enforces the safety interlocks (residual-current, earth, voltage and temperature protection), and reports state back to the communication controller.

On Jolt Business the charge-control function runs on a dedicated controller; on Home and HomePlus it is integrated alongside the communication controller. Either way, the two functions are logically separate — which is why firmware and diagnostics are documented per controller in the Internal Docs section (BRIGHTBLU staff).

A charging session, end to end

1. Idle / Available — the charger advertises it’s ready (green LED).
2. Plug in — the vehicle is detected via the control pilot; the charger enters Preparing.
3. Authorize — the session is authorized by RFID tap, the app, an OCPP backend, or automatically in Free (plug-and-play) mode.
4. Handshake — the charger and vehicle negotiate over the control pilot; the charger signals the maximum current it can offer.
5. Charging — the contactor closes and power flows, capped by the configured current limit and, where enabled, by Dynamic Power Management sharing supply across chargers.
6. Stop — triggered from the app, RFID, the backend, or the vehicle. The contactor opens and the connector unlocks.

The single status LED reflects each of these states by colour and blink pattern — see LED status. Faults interrupt the session and are signalled by a red/fuchsia blink code (Error codes).

Local vs. cloud control

• Local — commission and configure a unit on site over BLE (no internet required), or control it on the same network with the Jolt Control app.
• Cloud — on HomePlus and Business, the charger connects to your CSMS over OCPP 1.6J for remote monitoring, access management, load control and (on Business) billing-grade metering.

Connectivity & fallback

A Jolt charger reaches its backend over whichever links the model supports — WiFi, BLE, SIM, and LAN on Business — and it is built to keep a site online when a link drops.

Multiple WiFi networks. A charger can hold several WiFi credentials at once. You can provision them locally over BLE during commissioning, or remotely over OCPP using ChangeConfiguration once the unit is online. If the primary network becomes unreachable, the charger automatically tries the next configured network in turn — useful where site WiFi is shared, changes over time, or has a backup access point.

Fallback across connectivity types. On models with more than one link (Business carries WiFi / LAN / SIM), the charger follows a preference order — for example WiFi → LAN → SIM — using the preferred link while it’s available and falling back to the next when it isn’t, then automatically reconnecting to the preferred link once it returns.

Together these keep the OCPP connection and any active charging session alive through everyday network hiccups, without an installer having to visit the site.