Software & Firmware
Here you can download the latest public software for our EV Charging products (EVSE). For those devices that are not connected, this is a great opportunity to be able to manually update an EV chargers software.
Shortcuts:
CTEK Driver for Windows (No drivers needed for other operative systems)
Products:
CHARGESTORM CONNECTED 3i & 3e | CHARGESTORM CONNECTED 3 | CHARGESTORM CONNECTED 2 | CHARGESTORM CONNECTED 1 | CTEK GRID CENTRAL (CGC) | NANOGRID AIR
How to:
CHARGESTORM CONNECTED 3i & 3e
Firmware updates
CC3i/3e FIRMWARE - R4.11.10 | 2026-06-09
Documents
CHARGESTORM CONNECTED 3i INSTALLATION MANUAL
CHARGESTORM CONNECTED 3i GETTING STARTED
CHARGESTORM CONNECTED 3e INSTALLATION MANUAL
CHARGESTORM CONNECTED 3e GETTING STARTED
CHARGESTORM CONNECTED 3
Firmware updates
CC3 FIRMWARE - R4.11.10 2026-06-09
CC3 FIRMWARE - R4.10.5 2026-03-12
Documents
CHARGESTORM CONNECTED 3 MANUAL
CHARGESTORM CONNECTED 2
Firmware updates
FIRMWARE - R4.11.10 | 26-03-12
FIRMWARE - R3.19.4 | 26-02-24
Documents
CHARGESTORM CONNECTED 1
Firmware updates
FIRMWARE - R3.19.4 | 26-02-24
CTEK GRID CENTRAL (CGC)
CGC500TM - Firmware updates
FIRMWARE CGC500 - R4.11.10 | 26-06-23
Note: When upgrading the CGC500, a stepwise firmware upgrade may be required.
Manual
CGC100TM - Firmware updates
FIRMWARE - R4.11.10 | 26-03-12
FIRMWARE - R3.19.4 | 26-02-24
Manual
Release notes & Parameters
R4X
R3X
NANOGRID™ AIR
Firmware updates
FIRMWARE NANOGRID™ Air - V1.3.2 | 25-01-13
FIRMWARE NANOGRID™ Air - V1.3.1
Documents
Requirements
To install the firmware, it requires a computer or smartphone connected to the same network as the NANOGRID™ AIR and a connection to internet.
Statement regarding support for TLS Version 1.3 on R3.x Firmware
We want to inform you that CTEK does not support TLS version 1.3 on CHARGESTORM CONNECTED 1 and earlier models (Eva & CSR Series). This is due to the coding within Firmware R3.x We do however support TLS Version 1.3 in Firmware version R4.x
Please check your installed base before upgrading your security certificates to ensure continuity of the secured connection. If this is not checked and firmware is not compatible, there is a risk connectivity could be lost.
Thank you in advance
CTEK Support
Report potential software vulnerability
The Product Security Incident Response Team (PSIRT) at CTEK is the central contact for customers, partners, and researchers of a potentially identified cybersecurity vulnerability in any CTEK product or supporting system.
