Industrial battery systems must operate reliably in demanding conditions. For original equipment manufacturers (OEMs), selecting a battery marketed as rugged or heavy-duty isn't enough. The battery needs to be designed around the conditions in which the equipment will operate.
Temperature extremes, vibration, moisture, dust and demanding duty cycles can all influence battery performance, safety and service life. Understanding these factors early helps determine the right combination of cell technology, mechanical protection, thermal management and battery controls.
At Lithion, we start by understanding the equipment's operating environment and performance requirements, then use those requirements to guide battery pack design. This helps OEMs develop reliable battery solutions without adding unnecessary cost, weight or complexity.
Designing batteries for harsh environments begins with collecting accurate information about how and where the equipment will be used.
Rather than assuming that every battery requires the highest level of protection, OEMs should establish the specific environmental conditions and operational demands the battery will experience.
Key considerations include:
These factors can vary significantly between equipment types, even within the same industry.
For example, airport ground support equipment (GSE) may operate outdoors in freezing temperatures, heavy rain or high summer heat. Industrial vehicles may experience repeated vibration, dust and frequent charging, while diesel-to-electric conversions can introduce additional constraints around battery mounting and available installation space.
Understanding these requirements from the outset helps OEMs make informed design decisions and avoid unnecessary modifications later in development.
Many environmental challenges can be addressed through appropriate battery design, protection and operating controls. However, the right solution depends on the severity of the conditions and the equipment's performance requirements.
Different environments require different design considerations.
These measures should be selected based on the actual operating environment rather than applying the same specification to every battery.
For example, an enclosure's ingress protection (IP) rating should reflect the expected exposure to dust and water. A higher rating may provide additional protection, but it can also affect cost, enclosure design and thermal management.
The objective is to select the protection needed for reliable operation without introducing unnecessary complexity.
Temperature is one of the most important considerations when designing batteries for demanding environments.
High temperatures can accelerate battery degradation and affect performance and safety. Low temperatures can reduce available power and capacity, while charging at low temperatures can create additional risks, including lithium plating, depending on the cell chemistry and operating conditions.
Battery design must therefore consider both charging and discharging temperatures.
In cold environments, charging may need to be restricted until the battery reaches an acceptable temperature. Depending on the application, heating may be required to support operation and charging.
In hot environments, appropriate thermal management is needed to help maintain battery performance, protect service life and manage safety risks.
The right approach depends on the selected cell technology, duty cycle, charging strategy and installation conditions.
For OEMs, understanding these requirements early helps determine whether passive cooling, active cooling, heating or other thermal management measures are appropriate.
Mechanical protection and thermal management are important, but the battery must also be able to monitor and respond to changing operating conditions.
A battery management system (BMS) monitors parameters such as cell voltage, current and temperature, helping the battery operate within defined limits.
Depending on the application, the BMS may initiate protective actions such as limiting charging or discharging, communicating warnings to the equipment controller or requesting a controlled shutdown.
These functions must be designed around the battery's operating requirements and integrated with the wider equipment controls.
For example, if a battery reaches a temperature limit during operation, the appropriate response may be to reduce available power rather than immediately disconnect the battery. The correct action depends on the equipment's safety requirements and how the complete system is designed to respond.
The BMS is an important part of battery protection, but it works alongside cell selection, electrical protection, mechanical design and thermal management rather than replacing them.
Defining these requirements early helps OEMs ensure that the battery and equipment respond appropriately to environmental conditions and potential faults.
Designing batteries for demanding environments doesn't necessarily mean specifying the highest level of protection for every application.
For OEMs, the objective is to understand the actual operating conditions and select the appropriate combination of cell technology, enclosure protection, thermal management and battery controls.
Overengineering a battery system can introduce unnecessary cost, weight and complexity. However, insufficient protection can lead to premature degradation, equipment downtime and expensive modifications.
For example, specifying additional cooling, extensive mechanical protection or a higher enclosure rating than the application requires may increase development and manufacturing costs without delivering a meaningful operational benefit.
Equally, underestimating exposure to vibration, moisture or temperature extremes can affect battery reliability and service life.
At Lithion, we consider these requirements during the initial design process, helping OEMs balance reliability, performance and cost without adding features that the application doesn't require.
This approach is particularly valuable when developing battery solutions for multiple equipment platforms, where unnecessary variations can increase engineering, maintenance and spare parts complexity.
Environmental protection should be considered throughout battery development and supported by appropriate testing.
Depending on the application and applicable standards, testing may assess:
Testing requirements should be identified early so they can influence component selection, enclosure design, mounting arrangements and BMS configuration.
Planning validation alongside development helps identify potential weaknesses before the battery reaches production, reducing the risk of unexpected redesigns and delays.
Battery reliability depends not only on the initial design but also on how the system is supported throughout its operating life.
For OEMs operating equipment in demanding environments, maintenance access, diagnostics and replacement component availability can influence equipment uptime and total cost of ownership.
Important questions include:
Considering these requirements during development helps OEMs plan for ongoing maintenance and reduce the risk of extended equipment downtime.
For OEMs, designing battery systems for harsh environments requires more than selecting rugged components. It requires understanding how the equipment will operate and engineering the battery around those conditions from the outset.
Lithion works with OEMs to understand their operating environments, duty cycles and integration requirements before developing the battery solution.
By considering cell selection, mechanical protection, thermal management, BMS configuration and applicable safety requirements early in development, we help customers reduce technical risk, avoid unnecessary complexity and develop reliable, cost-effective battery systems.
Whether developing new electric equipment or converting existing vehicles, our approach is to design battery solutions around the application, helping OEMs balance performance, reliability and total cost of ownership.
Developing electric equipment for demanding operating environments?
Contact Lithion to discuss your battery requirements and how application-led battery design can support your electrification strategy.
