Predictive
Maintenance
Health Prognostic System for EV Charging Infrastructure
Make Uptime Predictable. Cut Field Service Costs by 10%
Your dashboard tells you a session failed. Our platform tells you why it will fail next Tuesday.
Promwad offers a predictive maintenance platform for DC fast chargers that adds a hardware health layer to your network—across every charger brand in your fleet.
Detect faults early, triage interventions, and dispatch technicians with the right parts to reduce truck rolls and shorten MTTR.
Built for
✓ Charge point operators (CPO)
Problem: Uptime Drives Revenue—But Field Service Is Eating Your Margin
European charging infrastructure is growing fast, but unit economics are under pressure. Most operators fight pricing pressure while carrying the operational cost of technically complex equipment.
Three issues drive the pain:
When contracts require 95–98% uptime, you don’t have room for trial-and-error repairs. Reactive maintenance makes it almost impossible to consistently meet SLA targets and doesn’t scale with fleet growth.
✓ 1 of 3 charging session fails
✓ One-third of failures occur on “operational” chargers
Universal Hardware Health Layer for DC Chargers
Promwad turns reactive operations into predictive maintenance
We monitor charger health with a non-invasive sensor set + edge computing + cloud analytics to detect failures before they become downtime.
What we deliver:
- Early fault detection for critical subsystems: power electronics, contactors, PSU behavior, thermal stress, and cooling wear.
- Fleet triage that tells you which chargers to service first and why
- Reduced dispatch + shorter MTTR through remote pre-diagnosis and better parts planning
This is not another CSMS. It’s the missing layer that CSMS/OCPP cannot provide: real-time hardware signals + predictive diagnostics.
Request a Pilot Cost Model for Your Fleet
Share your fleet size and vendor mix — we’ll estimate payback, rollout effort, and expected uptime impact.
How It Works
A set of external sensors attaches to the charger cabinet— without permanent redesign.
An industrial edge unit collects raw signals, builds baselines, and runs first-level detection locally for fast response.
The cloud dashboard aggregates health signals across sites and vendors, producing health scores, failure indicators, trend analytics, and a prioritized intervention queue.
Plus an API to integrate with your CSMS/CPMS and service workflows.
What We Monitor: High-Impact Failure Modes That Drive Downtime
We focus on the subsystems that most often trigger service calls and session failures:
Kirill Zut, IP & Product Manager
Modules. What You Get
Power Electronics Health Score
A continuously updated health score that tracks thermal stress and degradation signals in the power stage—helpful for identifying risky units before they fail.Detects: thermal drift linked to module wear.
Cooling System Integrity Monitor
Identifies cooling wear patterns that silently reduce performance and trigger shutdowns or derating.Detects: fan wear, airflow restrictions.
Dispatch Optimizer
Remote pre-diagnosis helps you: - avoid unnecessary call-outs - avoid unnecessary call-outs - pre-stage spare parts - bundle interventions by route and site priorityThe result: reduced truck rolls by 10%!
SLA Compliance Tracker
Forecasts operational risk per charger and per site so you can manage: - concession uptime requirements - municipal SLA reporting - preventative scheduling aligned to risk
Fleet Triage Dashboard
One view across all sites and vendors—ranked by urgency and impact.Outputs: a prioritized intervention queue, per-charger health history, and “why this needs service.”
Outcomes Your Operations Team Can Measure
Real-World Example: Catching Contactor Degradation Hidden by OCPP
We installed our solution at the EV charge station in Serbia.
Predictive analytics resulted in reduced downtime: for car owners, it improved the user experience, and for the operator, it increased workload, revenue and reputation among their clients.
Request a Pilot Proposal. We’ll recommend the right package based on fleet size and vendor mix.
Product Snapshot (What’s Included)
Delivery process built for broadcast realities: latency budgets, sync, and interoperability must be verified early.
Security & enterprise readiness (high level)
Why Promwad
With 21 years of expertise and a team of 100+ engineers, Promwad specializes in complex automotive and mobility systems where reliability, safety, and long product lifecycles are critical.
What that means for operators:
- Real hardware signals, not just protocol logs
- Practical deployment design: edge + cloud
- Engineering-grade diagnostics that reduce operational uncertainty
If your fleet includes multiple vendors, your monitoring strategy must too.
Take Control of Your Fleet’s Uptime & Ensure Uninterrupted Monetization!