OCPP and OCPI solve two different EV charging problems. This guide explains how OCPP connects chargers with management software, how OCPI connects charging networks for roaming, which versions matter in 2026 and what operators should verify before buying EV charging infrastructure.
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What actually separates a good EV charger from a bad one: certifications to demand, specifications that matter, service terms to negotiate, and the questions that expose a weak supplier.