EV Charging Myth: “Uptime Above 97% Isn’t Realistic”

If you operate a public EV charging network, you already know the numbers don't lie. According to the J.D. Power 2025 U.S. Electric Vehicle Experience (EVX) Public Charging Study, 14% of EV owners visited a public charging station and left without successfully charging their vehicle. While that figure marks an improvement from 19% in 2024, it still represents millions of failed charging attempts every year — each one a blow to driver trust and your brand reputation.

For many EV charging network operators, 95–97% uptime has become the unofficial industry benchmark. It’s often described as “good enough” in a rapidly scaling market where deployment speed and site acquisition dominate the conversation. But in a business built on driver trust, recurring utilization, and site host confidence, those missing percentage points matter more than they seem.

At first glance, a few hours of downtime per month may not appear significant. In reality, every offline charger represents lost revenue, frustrated drivers, negative app reviews, and potential damage to long-term brand credibility. As public scrutiny around charging reliability increases, uptime is no longer just a maintenance metric — it’s a competitive differentiator.

The bigger issue is that uptime is frequently misunderstood. Charger availability, successful session rate, payment processing functionality, and network connectivity are often lumped together under one broad number. Without clear visibility into what’s actually causing downtime — whether it’s firmware instability, connectivity failures, grid interruptions, or hardware defects — operators can’t meaningfully improve performance. And that’s where the real opportunity lies.

Why Do EV Chargers Go Offline? Understanding the Root Causes

Research from a 2024 Techniche study of 5,000 chargers identified the following breakdown of on-site repair callouts:

A critical finding from ChargerHelp's Annual Reliability Report adds even more context: approximately 55% of all charger failures are attributed to network connectivity problems, often caused by poor or unreliable cellular reception at the station site.

The implication for operators is clear: reliable, always-on cellular connectivity paired with real-time remote monitoring is the single highest-leverage investment you can make to reduce downtime.

How Kajeet's Solutions Directly Address EV Charging Downtime

1. Resilient, Purpose-Built Connectivity for EV Chargers

The most preventable cause of EV charger downtime is a lost or degraded cellular connection. When a charger loses its network connection, it typically defaults to an "offline" or "unavailable" state — meaning it cannot authorize sessions, process payments, or communicate with your network management system. Even a fully functional charger becomes useless to a driver when connectivity fails.

Kajeet's wireless connectivity solutions are engineered to eliminate this single point of failure. Key capabilities include:

• Multi-carrier network access: Kajeet provides access to multiple mobile network operators (MNOs), ensuring that if one carrier's signal is weak or unavailable at a specific site, the connection automatically routes through an alternative carrier. This directly addresses one of the most cited causes of charger communication failures.
• Purpose-built for IoT applications: Unlike consumer-grade cellular plans, Kajeet's connectivity is optimized for the always-on, low-latency, high-reliability demands of EV charging equipment operating in remote or high-traffic locations.
• Nationwide coverage for distributed infrastructure: Whether your chargers are deployed along rural highway corridors, in urban parking garages, or at suburban retail locations, Kajeet's network coverage extends to the places where EV drivers need charging most.

For operators building toward NEVI compliance, which mandates a 97% average annual uptime per charging port, eliminating connectivity-driven outages is non-negotiable. Kajeet's connectivity layer provides the foundation that makes that standard achievable.

2. Sentinel: Real-Time IoT Monitoring and Predictive Intelligence

Connectivity alone is necessary, but not sufficient. To truly maximize uptime across a distributed charging network, operators need visibility into every charger in real time. That's exactly what Kajeet's Sentinel® platform delivers.

Sentinel is Kajeet's cloud-based IoT management platform built with data warehousing, reporting, data visualization, predictive analytics, and machine learning capabilities — all designed to help network operators make smarter, faster decisions about their infrastructure:

• Real-time connectivity monitoring: Know immediately when a charger loses its connection, before a driver encounters the problem and leaves a negative review.
• Custom alerts and threshold-based notifications: Set alerts based on specific performance parameters — connection drops, data anomalies, session failures — so your operations team can respond proactively rather than reactively.
• Predictive analytics and machine learning: Sentinel's AI-driven analytics identify patterns in device behavior that precede failure. This enables predictive maintenance — addressing issues before they cause a full outage, rather than waiting for a breakdown report.
• Data visualization and reporting dashboards: Monitor fleet-wide charger performance, connectivity health, session data, and operational KPIs across your entire network in one centralized platform.

Research by ChargerHelp reveals a troubling discrepancy: while most networks report uptime figures of 98-99%, the real-world "true uptime" — the actual probability that a driver can successfully initiate a charge — sits closer to 71%. This gap exists largely because traditional network management systems report a charger as "online" even when its connectivity is degraded, its session authorization is timing out, or its payment terminal is malfunctioning.

3. Scalable Infrastructure for Growing EV Networks

One of the most significant operational challenges for EV charging network operators is scaling. As your network grows from dozens to hundreds to thousands of charging ports, managing connectivity and device performance manually becomes impossible. The complexity compounds quickly:

➜ New site deployments require rapid, reliable connectivity provisioning

➜ Aging infrastructure (failure rates increase significantly after the 4-year mark) requires increasingly sophisticated monitoring

➜ Regulatory requirements like NEVI demand documented, verifiable uptime data at scale

Kajeet's solutions are designed to scale with you. The Sentinel platform is built to manage large fleets of IoT devices, making it equally effective whether you're overseeing 50 chargers or 5,000. New devices can be provisioned and onboarded quickly, and Kajeet's team provides implementation support and ongoing managed services to ensure your connectivity infrastructure grows as your network does.

Frequently Asked Questions About Kajeet for EV Charging

Q: How does Kajeet's connectivity solution prevent EV charger downtime? Kajeet provides multi-carrier cellular connectivity that automatically routes around weak or unavailable signals, ensuring chargers maintain a persistent connection for session authorization, payment processing, and remote management — the most common causes of connectivity-related downtime.

Q: What is the Sentinel platform and how does it help EV network operators? Sentinel is Kajeet's cloud-based IoT management platform that provides real-time monitoring, custom alerts, predictive analytics, and data visualization for EV charging fleets. It enables operators to identify and resolve issues remotely before they result in extended downtime.

Q: Can Kajeet help us meet NEVI uptime requirements? Yes. Kajeet's connectivity and monitoring solutions are designed to support the 97% average annual uptime requirement mandated by the NEVI program by eliminating connectivity-driven failures and enabling faster remote resolution of issues.[KK1]

Q: How does predictive maintenance work with Kajeet's platform? Sentinel's machine learning algorithms analyze real-time and historical data from connected chargers to identify patterns that precede failure, such as unusual data transmission behavior or performance degradation, alerting your team to intervene before a full outage occurs.

Q: Is Kajeet's solution scalable for large charging networks? Absolutely. The Sentinel platform is built to manage large-scale IoT device fleets, with streamlined provisioning, centralized management, and API integrations that connect to your existing operational systems regardless of network size.

Ready to Take Control of Your EV Charging Network's Uptime?

Kajeet's solutions are purpose-built for the connectivity and operational intelligence demands of modern EV charging infrastructure. Whether you're managing an existing network, planning a major deployment, or working toward NEVI compliance, Kajeet has the expertise and technology to support your goals. Learn more here >>