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The right SIM depends on your hardware design and deployment requirements. Plastic SIMs (2FF, 3FF, or 4FF) are commonly used for serviceable installations, while MFF2 and eSIM solutions are designed for embedded applications that require greater durability in demanding outdoor environments. Simbase supports all major SIM form factors to fit your deployment.

Not always. Many EV charging deployments operate successfully using standard cellular connectivity. However, organizations with enhanced security, network segmentation, or compliance requirements may benefit from a Private APN. Simbase offers Private APN options for deployments that require additional control over network traffic.

Permanent roaming is when a SIM registered in one country stays connected to a foreign network indefinitely. Some EU regulators and MNOs restrict this — a SIM provisioned in, say, the Netherlands could be disconnected after 90 days on a German network. Multi-IMSI SIMs avoid this entirely: they carry a local profile for each deployment country, so the charger registers as a domestic device, not a roamer. Simbase SIMs use local IMSI profiles in key markets to eliminate permanent roaming risk.

Simbase supports a wide range of EV chargers that use cellular connectivity, including models with physical SIMs and eSIM technology. Whether you're deploying AC chargers, DC fast chargers, or high-power charging infrastructure, Simbase provides flexible connectivity that integrates with your existing hardware and charging platform.

Data usage varies depending on charger type, OCPP communications, payment processing, remote diagnostics, and firmware updates. Basic AC chargers often use relatively little data, while DC fast chargers and high-power chargers may require significantly more. Simbase helps you choose connectivity plans that match the real-world demands of your deployment.

Yes. Simbase supports global deployments with Multi-IMSI SIMs and eSIM technology, allowing you to simplify international rollouts with a single connectivity strategy. Instead of sourcing different SIMs and carrier agreements for each country, you can deploy the same solution across multiple regions while managing connectivity from one centralized platform.

A single OTA update can be 50–500 MB depending on whether it's a delta patch or a full-image push. Most chargers receive 2–4 updates per year from some combination of OEM firmware, CPMS agent, payment terminal software, and modem firmware. On a capped plan like 1NCE (500 MB / 10 years), one firmware event can consume years of data allowance. Simbase pools data across your fleet, so OTA spikes are absorbed by headroom elsewhere — no overage surprises.