EV Charger Connectivity in the UK: Why EV Installers Are Switching to

The Growing Importance of EV Charger Connectivity in the UK

The UK EV charging industry is expanding rapidly, driven by government incentives, OZEV-backed schemes, fleet electrification, and the rollout of Rapid and Ultra-Rapid EV chargers nationwide.

For today’s EV installer, installing the hardware is only half the job. Reliable EV charger connectivity is now essential for commissioning, operation, billing, maintenance, and user satisfaction.

Without a stable EV charger internet connection, even the most advanced charge point becomes unusable.

Common EV Charger Connectivity Issues Faced by UK Installers

Across residential, commercial, and public EV charging installations, installers face recurring problems:

Lack of fixed broadband at charger locations
Unreliable mobile signal from single-network SIM cards
Complex APN configuration requirements
EV chargers going offline after installation
Failed commissioning due to data dropouts
Rapid EV chargers disconnecting mid-session

These issues increase operational costs and damage installer credibility with charge point operators and local authorities.

Why Single-Network SIM Cards Are No Longer Suitable for EV Chargers

Using a single-network SIM card for EV chargers assumes strong coverage from one mobile operator at every location. In reality, mobile coverage varies street by street.

For static infrastructure like EV charge points, poor signal means:

Intermittent OCPP communication
Failed payment authorisation
Inaccurate charger availability data
Reduced uptime and SLA breaches

This is why more installers are switching to aggregated multi-network SIM cards for EV chargers.

GleeSIM: Aggregated Multi-Network Data SIMs for EV Charger Installations

GleeSIM provides a UK aggregated data SIM solution specifically designed for EV charging infrastructure.

Each GleeSIM automatically connects to the strongest available UK network, including:

EE
Vodafone
O2
Three

This ensures consistent, resilient connectivity for EV chargers regardless of location.

True Plug and Play SIM Cards for EV Chargers (No APN Required)

Unlike traditional data SIMs, GleeSIM is a plug and play SIM card for EV chargers.

There is:

No APN configuration
No manual router programming
No network selection required

Installers simply insert the SIM into the EV charger modem or router, power on, and the charger connects instantly.

This reduces installation time, commissioning delays, and unnecessary return visits.

Reliable Connectivity for Rapid and Ultra-Rapid EV Chargers

Rapid EV chargers place higher demands on data connectivity than slow or fast chargers.

They require continuous, low-latency communication for:

User authentication
Contactless and app payments
Session monitoring
OCPP communication
Remote diagnostics

GleeSIM’s multi-network resilience is ideal for 4G and 5G SIM connectivity for rapid EV chargers, preventing session drops caused by weak or congested networks.