Ultra-High-Voltage Battery Testing: The Core Support for Power Batteries Entering the High-Voltage Era

Evolution of battery testing equipment and emerging demands

As the new energy vehicle industry evolves rapidly, core metrics such as energy density, cycle life, and safety of power batteries continue to break through, driving multiple rounds of technological innovation in battery testing equipment. From traditional lead‑acid batteries to ternary lithium, LFP, semi‑solid‑state and even all‑solid‑state batteries, every leap in battery technology imposes more stringent requirements on testing equipment. As the cornerstone of R&D, production, and quality inspection, the performance of battery testing equipment directly determines the accuracy and efficiency of battery performance evaluation.

On the vehicle side, a voltage revolution is sweeping the industry. 2026 is regarded as "the year that 800V high‑voltage platforms fully descend into the mainstream," with ultra‑fast charging technology shifting from a flagship feature to a mid‑range trend. Industry estimates show that the penetration rate of 800V platforms exceeded 10% in 2025, with sales approaching 1.5 million vehicles, and is expected to reach 15% in 2026. According to QYResearch, the global 800V high‑voltage new energy vehicle market reached 77.83 billion in 2025 and is projected to hit 539.83 billion by 2032, representing a CAGR of 32.3%.

On the battery side, the race for higher charging rates is equally intense. In March 2026, BYD unveiled its second‑generation Blade Battery and megawatt flash‑charging 2.0 technology with a peak single‑gun power of 1.5 MW, achieving a 5‑minute charge to 70% and a full charge in 9 minutes at room temperature. Just a month later, on April 21, CATL responded at its Super Tech Day by launching the third‑generation Shenxing ultra‑fast charging battery, which charges from 10% to 98% in just 6 minutes and 27 seconds at room temperature, features an industry‑low internal resistance of 0.25 mΩ, and retains over 90% capacity after 1,000 ultra‑fast charging cycles. This rivalry between battery giants is pushing the entire industry's technical specifications to unprecedented levels.

On the vehicle product side, 800V high‑voltage platforms are rapidly expanding from premium segments into the mass market. In April 2026, Volkswagen Anhui launched its first pure‑electric SUV based on an 800V silicon‑carbide platform, the Zhòng 08, featuring CATL cells throughout and adding 150 km of range in just 5 minutes. Dongfeng Nissan's NX8 series, jointly developed with CATL, also supports 5C ultra‑fast charging. Whether it is CATL's condensed‑matter aviation‑grade high‑safety passenger‑car batteries, the thousand‑unit delivery of semi‑solid‑state batteries from NIO and GAC, or the world’s first mass‑produced sodium‑ion passenger vehicle co‑developed by CATL and Changan, automakers are making ultra‑fast charging a standard feature of their next‑generation electric platforms. All of this indicates that ultra‑high‑voltage power‑battery technology is at a critical stage, transitioning from breakthrough demonstrations to widespread adoption.

New testing challenges from the simultaneous upgrade of power, capacity and voltage range

As battery voltage shifts from the traditional 400V platform to 800V and even higher levels above 1,000V, charge‑discharge testing equipment faces unprecedented challenges.

Challenge 1: Extending the upper voltage limit.

To accommodate 800V or higher battery‑pack testing, equipment must cover the full charge‑discharge voltage operating range. Traditional equipment maxes out at 500V‑800V and can no longer meet the testing needs of next‑generation high‑voltage platforms.

Challenge 2: Maintaining testing precision and dynamic response under ultra‑high power.

The emergence of megawatt‑level flash charging pushes single‑gun power from hundreds of kilowatts to 1,500 kW. This requires test equipment not only to have a higher current range but also to preserve accuracy under ultra‑high power. BYD's 10C‑level flash charging means the battery must tolerate ten times the normal current in a very short time; test equipment must therefore have adequate sampling resolution and response speed to accurately capture critical electrochemical signals such as voltage drop and internal‑resistance change during high‑current charge‑discharge.

Challenge 3: Upgrading safety protection systems for testing.

1,500V high voltage imposes stringent requirements on insulation, heat dissipation, and safety protection for test equipment. Charging cables must withstand ultra‑high voltage and high current; entire vehicle high‑voltage wiring harnesses, relays, and the BMS must be redesigned to ensure reliability. Any weakness in any link can cause system failure. Consequently, functions such as high‑voltage safety protection, mandatory insulation testing, over‑current/over‑temperature protection, and fault self‑diagnosis have become mandatory rather than optional in test systems. Equipment must incorporate sufficient safety redundancy to reliably protect each operation by R&D personnel.

Challenge 4: Functional integration and environmental coordination.

Validating ultra‑high‑voltage battery performance involves much more than simple charge‑discharge cycling. The temperature rise caused by ultra‑fast charging has a major impact on battery life. Therefore, test systems must support multiple modes – condition simulation, dynamic pulsing, HPPC, DCIR – and also coordinate with peripheral devices such as temperature chambers and water‑cooling systems to evaluate thermal management efficiency and long‑term operational stability under controlled temperature environments. The degree of functional integration and multi‑device coordination directly affects the efficiency and reliability of ultra‑high‑voltage battery R&D validation.

Analysis of NEWARE CE-6000 series ultra-high-voltage battery testing equipment

NEWARE CE-6000 series PACK test system is a next‑generation high‑precision charge‑discharge testing platform designed to meet these challenges, specifically developed for high‑power battery module and pack testing. The series achieves key breakthroughs in voltage range expansion, precision maintenance, dynamic response, and safety protection.

Ultra-wide voltage range and high precision

The CE-6000 series supports a maximum output voltage of 1,500V/3,000V, fully covering the charge‑discharge testing needs of next‑generation 800V high‑voltage platforms and ultra‑high‑voltage packs above 1,000V. Voltage accuracy is ±0.02% F.S., current accuracy is ±0.05% F.S., and the system uses high‑performance 24‑bit AD conversion chips, delivering much higher sampling resolution than traditional 12/16‑bit equipment. The charging voltage range covers 0V to 3,000V, and the lowest discharge voltage extends to 0V and even into negative territory with the –F negative‑voltage extension model, supporting forced discharge to 0V for safety testing, destructive testing, and other extreme validation scenarios. While the 1,500V/3,000V upper limit aligns with current megawatt‑class fast‑charging battery development, the system's modular architecture reserves compatibility for future higher‑voltage needs as leading manufacturers already conduct R&D above 3,000V.

Megawatt-level power expansion and dynamic response

The CE-6000 series supports parallel current expansion across multiple channels; a single module can deliver 200A to 400A, with total output power reaching 1,200 kW when paralleled. Current response time is ≤10 ms, conversion time is ≤20 ms, and minimum pulse width is 100 ms, supporting advanced tests such as pulse testing, HPPC, cycle‑life testing, and complex condition simulation. DBC configuration files can be loaded, real‑world condition simulation can be performed via Excel/TXT route‑profile file import, and the system supports up to 1 million rows of change data, meeting the demanding high‑frequency data acquisition requirements of ultra‑fast charging pulses.

Advanced energy regeneration and efficiency optimization

The CE-6000 series uses a bidirectional high‑frequency DC‑DC conversion topology with an energy conversion efficiency >94%. During discharge, the energy is preferentially consumed by other charging channels in the system; any surplus energy is fed back to the grid via the AC‑DC module, greatly reducing the operational energy consumption and heat generation of large‑scale battery testing, thereby enabling long‑duration continuous test runs.

Modular design and multi-scenario adaptability

The CE-6000 series adopts a modular design, with flexible DC/AC module configurations and a full copper‑busbar architecture. The model lineup covers multiple voltage grades from 50V to 1,500V and current grades from 100A to 1,200A. Representative voltage nodes include 150V, 200V, 300V, 400V, 500V, 600V, 700V, 750V, 800V, 900V, 1,000V and 1,500V/3,000V, with each voltage node optionally paired with a 200A or 400A current platform. Models with the "-B" suffix support separate charge/discharge connections, while "-F" suffix models support negative voltage output.

Multi-protocol communication and multi-equipment integration

The CE-6000 series features standard CAN and RS485 communication interfaces, supporting the import, editing, and export of DBC configuration files. By editing the corresponding DBC protocol file for a given battery pack, users can achieve bidirectional communication between the BMS and the test system without upgrading software or modifying underlying code. Through coordinated control with third‑party equipment such as temperature chambers, water‑cooling units, and external pressure fixtures via BTS8.0 upper‑computer software, the CE-6000 series can comprehensively evaluate ultra‑high‑voltage battery performance under controlled temperature, humidity, and pressure conditions, meeting the demands of advanced tests such as HPPC and thermal‑management validation.

Laboratory-grade precision and scalability

In terms of precision, the CE-6000 series delivers voltage accuracy of ±0.02% F.S. and current accuracy of ±0.05% F.S., with a recording frequency of 100 Hz and a current conversion time of ≤20 ms. Through BTS software, charge‑discharge data and temperature‑chamber data can be automatically and synchronously linked, ensuring accuracy and consistency in analysis. For large‑scale testing, the unit's parallel expansion capability and the ability to accommodate hundreds of test channels within a single system enable integrated data acquisition from cell‑ to module‑ and pack‑level samples, significantly improving the efficiency of ultra‑high‑voltage battery R&D and quality control workflows.

Future demand forecast for ultra-high-voltage battery testing

Looking ahead, the evolution of ultra‑high‑voltage battery testing will accelerate along three main tracks: higher voltage platforms, faster charging rates, and more complex safety validation.

Voltage platforms will move from 1,000V to 1,500V and beyond. Battery packs of 2,000V and above are already on the technology road‑maps of leading international companies, meaning test equipment must pre‑develop next‑generation platforms to solve insulation voltage endurance, shielding, and communication immunity challenges at several thousand volts. The CE-6000 series is already maturely deployed on the 1,500V platform, and its modular architecture makes it easy to upgrade to higher voltage levels by swapping power units.

Charging rates will evolve from 10C‑class to 15C or even 20C. As cell internal resistances continue to fall and high‑voltage‑withstanding SiC power chips become more widely adopted, single‑gun peak power and current density will climb further. Test equipment will need ongoing iteration and optimization in millisecond‑level pulse response, high precision over ultra‑wide current ranges, and thermal management of high currents.

Safety testing standards for ultra‑high‑voltage batteries will be upgraded across the board. As more 1,500V and even 3,000V substation‑connected storage batteries and megawatt‑class fast‑charging batteries enter engineering stages, new growth areas will emerge: reliability testing of high‑current disconnect components such as isolation switches and contactors, edge‑computing validation of insulation‑monitoring algorithms, and boundary testing of BMS redundant safety mechanisms. In the future, ultra‑high‑voltage battery test equipment will serve not only as a performance validation tool but also as the ultimate "touchstone" for safety and reliability.