Failure rates act as a ‘hidden bottleneck’ in operations, disrupting the profit chain. In high-frequency heavy-duty truck operations such as ports, mining sites and trunk logistics, the success of battery swapping directly determines vehicle availability and project profitability.However, heavy-duty truck battery swap stations currently face the industry-wide challenge of ‘unpredictable failure rates’: sudden mechanical jams, positioning errors and poor battery contact often lead to interruptions in the swap process. What should be a 3–5-minute refuelling cycle can be extended to over half an hour due to faults, or even result in the awkward situation of ‘queuing for hours only to encounter a fault during the swap’.

A low failure rate is the “cornerstone of profitability” for heavy-duty truck battery swapping

The core value of heavy-duty truck battery swapping lies in “high-efficiency energy replenishment as an alternative to charging”, and the realisation of this value must be predicated on “low failure rates and high stability”. Data from the China Commercial Vehicle Battery Swapping Industry Alliance shows that when a swapping station’s failure rate is below 0.1%, the average daily number of vehicles served can increase by 30%, with operational revenue rising by more than 25%;Conversely, if the failure rate exceeds 1%, it will directly offset the efficiency advantages of the battery swapping model, with its overall costs potentially exceeding those of traditional charging methods. This implies that controlling battery swapping failures and ensuring operational reliability are not merely technical requirements, but also the core prerequisites for transforming battery swapping projects from ‘infrastructure’ into ‘profitable assets’.

For investors, persistently high failure rates directly reduce station utilisation, forcing the payback period—originally around five years—to be extended, thereby becoming a ‘hidden obstacle’ to the profitability of battery-swapping projects. For operators, a single failure not only results in the loss of revenue from a single vehicle being idle but may also trigger a chain reaction of issues such as station congestion and driver complaints.

Heavy-duty truck battery swapping is a complex process involving the coordination of mechanical, electrical and software systems; faults do not occur randomly but tend to erupt in four key areas.In the mechanical execution phase, insufficient positioning accuracy of the battery-swapping robotic arm and wear and ageing of the locking mechanism can cause jamming during battery removal and installation. In the battery interaction phase, oxidation of battery pack interfaces and abnormalities in the thermal management system can lead to poor contact or interrupted charging. In the intelligent control phase, delays in data exchange between the dispatch system and vehicle/battery data can result in command execution errors.In the operations and maintenance response phase, untimely fault warnings and delayed on-site maintenance responses can cause minor issues to escalate into major downtime. Whilst faults in these phases may appear isolated, they actually expose the industry’s widespread developmental shortcomings of ‘prioritising efficiency over stability’ and ‘prioritising hardware over software’, which have become the core contradictions hindering the large-scale adoption of battery swapping for heavy-duty trucks.

Implementation of the Nengyi Xing Solution: End-to-End Control to Build a ‘Low-Failure’ Operational Barrier

Addressing the pain points across the four core failure stages of heavy-duty truck battery swapping, Nengyixing adopts a holistic ‘mechanical + electrical + software + operations’ approach. By overcoming the industry’s tendency to ‘prioritise efficiency over stability’, the company has transformed over 100 patented technologies into practical, stable solutions. This maintains the battery swapping failure rate at an ultra-low level of 0.01%+, providing a solid foundation for operations.

In the mechanical execution phase, to resolve issues of positioning deviation and locking wear, Nengyi Xing employs dual-sensor technology combining “visual positioning and laser calibration”, paired with a servo-motor-driven multi-link self-locking structure. This achieves a positioning accuracy of ±0.5mm for the battery-swapping robotic arm, eliminating any jamming during battery installation and removal;The locking mechanism utilises aerospace-grade wear-resistant materials and is equipped with an automatic lubrication and maintenance system, extending its service life by more than three times compared to conventional products and reducing the risk of wear and ageing. Meanwhile, the chassis-based battery swapping station innovatively adopts a horizontal push-pull design, eliminating 85% of potential hydraulic failure points. The equipment height is reduced by 40%, enhancing operational stability and eliminating the risk of falls from height, thereby meeting the demands of high-frequency operational scenarios such as ports and mining areas.

Regarding battery interaction, Nengyi Xing has established a dual ‘protection + monitoring’ system. Battery interfaces utilise anti-oxidation gold-plating and IP54-rated sealing protection, reducing the incidence of poor contact by 90%. The independent compartment temperature control system comes standard with a 10kW cooling and 24kW heating module (customisable and upgradeable), supporting the segregated storage of batteries with different SOC levels, whilst precise temperature control prevents charging interruptions.The battery VR visualisation monitoring function of the digital energy management platform captures 12 key data points in real time, identifies anomalies within milliseconds, provides early warnings of thermal management system issues, and enables early intervention in the event of faults.

In the intelligent control phase, Nengyi Xing utilises digital and intelligent technologies to integrate the ‘vehicle-station-battery’ data chain. The in-house control system, built on 5G and edge computing, is deeply integrated with vehicle and battery BMS systems, reducing data transmission latency to under 10 ms and achieving 100% command execution accuracy.The AI-powered dispatch system synchronises information in real time and dynamically allocates resources to prevent command conflicts; millisecond-level data acquisition modules continuously optimise algorithms to achieve a closed-loop synergy between ‘battery swap commands, equipment response and data feedback’, resolving control-end faults and ensuring battery swaps are both efficient and precise.

In the operations and maintenance response phase, Nengyi Xing has established a closed-loop system combining “online intelligent early warning and offline rapid response”. A 24-hour panoramic digital monitoring system, working in conjunction with intelligent early warning, achieves a fault identification accuracy rate exceeding 99%, enabling the early detection of potential issues and the automatic generation and dispatch of intelligent work orders.Leveraging multi-regional service centres within a 200km radius, we fulfil our “4-hour arrival response” commitment, whilst PDA mobile terminals assist O&M personnel in resolving issues swiftly and accurately. Remote O&M support enables minor faults to be rectified via the cloud, reducing fault resolution times by 50% compared to the industry average. This prevents minor issues from escalating into major downtime, ensuring the stable, round-the-clock operation of battery swap stations.

As the penetration rate of new energy heavy-duty trucks continues to rise, competition in the battery swapping market has shifted from a ‘battle for efficiency’ to a ‘battle for stability’.The era of simply pursuing “faster battery swapping speeds” is now behind us; “low failure rates and high reliability” have become the core criteria for operators when selecting partners. Nengyi Xing has shattered the industry misconception that “efficiency and stability cannot coexist” through end-to-end technological innovation, redefining the “operational reliability” of heavy-duty truck battery swapping with an ultra-low failure rate of 0.01%+ and a battery swap success rate of 99.9%.Moving forward, Nengyixing will continue to prioritise technology, focusing on optimising mechanical structures, digital and intelligent monitoring, and building an efficient operations and maintenance system. This will ensure that every battery-swapping station becomes a “core asset generating stable profits”, injecting sustained, reliable and vigorous momentum into the green logistics sector.