Battery Temperature Test Chamber for Cells, Modules and Battery Packs
A configurable environmental chamber for evaluating battery performance, charging/discharging behavior and reliability under controlled hot and cold conditions. The published temperature platform extends from approximately −60°C to +150°C, while chamber size, electrical interfaces and safety systems are selected for the specific cell, module or pack.
What a Battery Temperature Chamber Evaluates
Battery performance changes with temperature. Low temperature can increase internal resistance and reduce available power or charge acceptance; high temperature can accelerate degradation and intensify the consequences of an internal fault. A controlled chamber lets engineers reproduce the required thermal condition while measuring voltage, current, capacity, resistance, temperature and functional behavior with external equipment.
This product is intended for environmental and performance testing—not as a universal substitute for every battery abuse tester. The chamber, cycler, instrumentation and safety controls must be engineered as one test system.
Applications by Battery Level
Cells
Temperature-dependent capacity, internal resistance, charge acceptance, storage, cycling and screening of cylindrical, prismatic or pouch cells.
Modules
Thermal balance, sensor response, interconnect behavior, BMS monitoring and charge/discharge performance across multiple cells.
Battery packs
Environmental validation of pack function, contactors, cooling interfaces, insulation monitoring, communications and system-level thermal response.
EV development
Performance and reliability testing of traction-battery components or systems using a profile appropriate to the vehicle application and test specification.
Portable batteries
Environmental conditioning and relevant safety-test preparation for portable sealed lithium cells and batteries.
Energy-storage systems
Component, module and subsystem thermal verification before larger-scale system or installation testing.
Published Performance and Configuration
| Item | Published or configurable capability | Order-specific confirmation |
|---|---|---|
| Temperature range | Approximately −60°C to +150°C | Selected refrigeration stage, chamber volume, specimen load and required continuous operating points |
| Specimen level | Cells, modules, battery assemblies and packs | Dimensions, mass, energy, chemistry, state of charge and quantity |
| Temperature control | Programmable hot/cold profiles and dwell control | Ramp rate, transition time, fluctuation, uniformity and loaded stabilization |
| Humidity | Available only on suitable temperature-humidity configurations | Required humidity envelope, dew-point limits and condensation risk |
| Data | Temperature records and controller alarm history | Channels, sampling interval, communications, file format and external DAQ integration |
| Electrical testing | Feedthroughs for external charge/discharge and monitoring systems | Voltage, current, cable size, connector, insulation, heat load and emergency isolation |
| Safety | Protection package selected through hazard review | Relief, gas detection, exhaust, fire suppression, reinforced structure and remote emergency shutdown |
Safety Configuration Options
Pressure-relief path
A relief panel or duct can be engineered to direct pressure and hot gases toward an approved safe location. Sizing depends on chamber construction and battery hazard.
Gas and smoke detection
Optional sensors can initiate alarms, stop charging, isolate specimen power or activate ventilation according to the approved safety sequence.
Fire suppression interface
Water, inert gas or another suppression approach may be integrated only after the battery chemistry, test mode and facility EHS requirements are reviewed.
Reinforced viewing design
A protected observation window, restraint system or window-free door may be selected based on risk. Ordinary viewing glass is not automatically suitable for abuse testing.
Electrical isolation
Emergency-stop circuits and interfaces can disconnect the external cycler or specimen power when a configured alarm or fault occurs.
Remote operation
Optional cameras, remote monitoring and alarm contacts allow personnel to observe higher-risk tests from outside the immediate test area.
Standards and Appropriate Use
| Reference | Relevant battery scope | What the chamber contributes |
|---|---|---|
| UN Manual of Tests and Criteria, 38.3 | Lithium cells and batteries intended for transport | Controlled thermal environments for applicable tests; the complete 38.3 program also requires other specialized equipment and documentation |
| IEC 62133-2:2017+A1:2021 | Portable sealed secondary lithium cells and batteries | Environmental conditioning for relevant procedures; chamber capability alone does not certify the battery |
| ISO 12405-4:2018 | Performance testing of lithium-ion traction battery packs and systems | Controlled temperature for performance, reliability and electrical-function procedures where specified |
| IEC 62660 series | Secondary lithium-ion cells for electric-road-vehicle propulsion | Cell-level temperature conditioning and testing when used with suitable measurement and cycling equipment |
| Customer/OEM specifications | Product-specific cell, module or pack requirements | Custom profile, interfaces, fixtures, safety response and reporting designed around the approved procedure |
The UNECE currently publishes Revision 8 of the UN Manual of Tests and Criteria together with Amendment 1 (2025). Always identify the exact revision and amendments required for the project rather than using the old “UN 38.3 (2012)” label.
Information Required Before Chamber Selection
Battery definition
Provide chemistry, format, dimensions, mass, nominal voltage, capacity, stored energy, quantity and state-of-charge range.
Test definition
Supply the standard/revision, temperature profile, ramp, dwell, cycling state, duration and acceptance criteria.
Heat-load calculation
Identify charge/discharge current, battery losses, cycler cables and any equipment located inside the chamber.
Interface design
Specify high-current cables, voltage taps, thermocouples, communications, cooling lines and connector requirements.
Hazard assessment
Define credible failure modes, gas release, fire, pressure and electrolyte hazards with the laboratory EHS team.
Facility review
Confirm power, ventilation, exhaust route, drainage, access, floor loading, emergency response and separation distances.
Installation Requirements
| Area | Planning guidance |
|---|---|
| Location | Level, stable floor; adequate service clearance; away from vibration, direct heat and corrosive or dusty environments |
| Ambient conditions | Maintain the temperature and humidity range stated in the final installation manual; provide HVAC for chamber heat rejection |
| Electrical supply | Dedicated correctly rated circuit, protective devices and grounding designed from the final voltage, phase, current and local electrical code |
| Ventilation/exhaust | Engineered for the battery hazard and directed to a facility-approved safe discharge point |
| Drainage | Required where condensation, cooling water or suppression water may be present; containment must address electrolyte-contaminated waste |
| Emergency access | Keep exits and aisles clear; locate emergency-stop controls and fire response equipment according to the site risk assessment |
Do not copy generic cable size, breaker multiplier or grounding-resistance values from another model. The final electrical schedule must be based on the purchased chamber and local code.
Recommended Test Workflow
- Approve the test and safety plan. Define specimen status, charging limits, abort criteria, alarm actions and emergency response.
- Inspect the chamber and interfaces. Verify sensors, feedthroughs, exhaust, relief path, door, alarms and emergency isolation before loading.
- Install and instrument the battery. Route cables to avoid short circuits, abrasion, seal damage and airflow obstruction.
- Run a controlled commissioning profile. Confirm battery and chamber temperatures, cycler communications and alarm logic before the formal test.
- Monitor from a safe location. Record temperature, voltage, current and defined hazard indicators; do not bypass interlocks.
- Quarantine and inspect after testing. Follow the site procedure for cooling, electrical isolation, abnormal specimens and waste handling.
Frequently Asked Questions
Can the chamber test cells, modules and full battery packs?
Yes, with different chamber sizes, cooling capacity, electrical interfaces and safety packages. Send a loading drawing and battery energy information for sizing.
Can batteries charge and discharge inside the chamber?
Yes, when connected to an external battery cycler through correctly rated feedthroughs. The cable heat load, connector insulation, emergency cut-off and test risk must be included in the design.
Is humidity included?
Not automatically. Humidity requires a temperature-humidity configuration and must be reviewed against the profile, dew point, condensation risk and battery safety requirements.
Are explosion relief and fire suppression standard?
No. These are risk-based options unless explicitly included in the technical agreement. The required design depends on battery chemistry, energy, quantity, state of charge and test severity.
Does the chamber make a battery compliant with UN 38.3?
No. It can provide temperature conditions for applicable parts of the program, but UN 38.3 includes multiple tests, documentation and battery-type requirements beyond a temperature chamber.
How is chamber volume selected?
Use the installed battery envelope plus airflow, fixtures, electrical cables, coolant lines and safe separation—not battery dimensions alone.
What determines the cooling and heating rate?
Chamber size, battery mass, internal heat generation, fixture mass, setpoints and refrigeration/heater capacity all affect loaded performance.
What should be sent with an RFQ?
Provide battery specifications, stored energy, quantity, state of charge, profile, standard revision, charge/discharge current, cooling interfaces, instrumentation, safety requirements, voltage and installation location.
Configure a Safer Battery Temperature Test System
Send DERUI the battery datasheet, stored energy, specimen quantity, test profile, charge/discharge current, applicable standard and laboratory safety requirements. Our engineers will review chamber capacity, thermal load, interfaces and protection options.
