In a previous article, we explored a key challenge for electric fleets: charging station availability. But availability alone is not enough. In real-world fleet operations, another question always arises: will the charging session actually complete successfully?
This is where a still underused KPI becomes essential: the charging success rate.
Availability ≠ successful charging
A charge point may be available without guaranteeing a successful charging session. In practice, a charging event can be interrupted or fail for several reasons:
- unstable communication between vehicle and charge point
- grid constraints or power fluctuations
- incompatibility or specific vehicle behaviour
- site operational constraints
In these cases, the charge point is operational, but the lorry is not charged. For operators, the impact is immediate: disrupted routes and direct financial consequences such as lost revenue or penalties.
A market still evolving
Heavy-duty EV charging is still a developing ecosystem. Standards are evolving, fleets are scaling up, and system interactions remain complex.
In this environment, it is unrealistic to expect every charging session to run perfectly every time. The real question becomes: what happens when something goes wrong?
Turning charging failures into successful outcomes
At Chargepoly, an error is never considered the end of a charging session. The focus is on maximising the real-world charging success rate, even when issues occur.
This is achieved through several integrated mechanisms.
Auto-retry: automatically restarting sessions
When a charging session fails or is interrupted, our systems can automatically restart it. This retry capability helps to:
- remove the need for manual intervention
- quickly resume interrupted charging sessions
- significantly improve the chance of a full charge
For operators, this means fewer disruptions and reduced operational burden.
Degraded mode: ensuring charging in imperfect conditions
When optimal conditions are not met for a standard charging session, Chargepoly stations can switch to a degraded mode. This enables them to:
- adjust charging power or parameters
- work around technical constraints
- still ensure the vehicle is charged
The objective is not peak performance at all costs, but ensuring the vehicle is ready to operate.
Software intelligence at the heart of performance
These capabilities are powered by Lucie, Chargepoly’s embedded software and intelligent monitoring system. With full control over the charging infrastructure, our teams can:
- monitor session behaviour in real time
- detect anomalies
- dynamically adjust charging strategies
- continuously improve performance
This enables a shift from a static charging model to an adaptive one, better suited to real operational conditions.
A more meaningful KPI than power ratings
In a market often focused on charger power (150 kW, 400 kW and beyond), charging success rate is a far more relevant operational KPI.
Because for fleet managers, the real question is not:
“What is the power of my charge points?”
But rather:
“How many of my vehicles are actually ready to go each day?”
Towards operations-led charging infrastructure
Like availability, charging success rate reflects a simple truth: fleet charging is an operational challenge first and foremost.
It requires:
- handling real-world failures
- anticipating vehicle behaviour
- continuously adapting systems
A clear belief: charging success must not depend on perfect conditions
Charging performance should not only be measured in ideal scenarios. It must be assessed in real operational environments, where imperfections are inevitable.
Because in fleet operations, only one outcome matters: vehicles charged, ready, and on the road.
