In April 2026, the mandatory standard Safety Technical Specification for Portable Power Banks (GB 47372—2026) was officially issued and will come into force on April 1, 2027.

While the industry was still grappling with the stringent requirements of "no fire, no explosion, no rupture, no leakage," a leading domestic power bank brand had quietly hit the compliance fast-forward button. By partnering with Hiruisi and adopting a high-precision RGA electrolyte leak detection solution, the company pushed its product pass rate to a new high and locked in market initiative ahead of the competition.

01 Compliance Anxiety: The "False-Call Trap" of Conventional Testing

Before the new standard was introduced, the power bank industry widely relied on VOC detection as a screening method for electrolyte leakage. Mature and well-established in application, this technology became the industry's conventional testing approach, meeting the basic inspection needs of early power bank production and providing a baseline safeguard for product safety at the time.

As expectations for product safety and production efficiency rose, however, this method began to show clear room for improvement:

Detection precision needs to go further to capture ever-smaller leak scenarios.

Anti-interference capability needs strengthening to reduce the influence of other volatile substances.

Testing workflow needs optimization to keep pace with high-volume mass production.

Engineers at the company stressed that they urgently needed electrolyte leak detection equipment that delivers precision, strong anti-interference performance, and suitability for high-takt batch inspection. With the new national standard now in place, sticking with legacy detection technology would bring not only compliance risk but also the loss of a critical window to capture the market.

02 The Breakthrough: Precision Detection with RGA Mass Spectrometry

Addressing the customer's pain points, Hiruisi drew on years of technical expertise accumulated in the new-energy power battery and 3C electronics sectors to build a tailored RGA electrolyte leak detection solution. At its core is the HM-210 Online Mass Spectrometer, paired with a floor-standing dual-station inspection platform.

Core Technology: RGA Quadrupole Mass Spectrometry

Unlike VOC detection, which judges leaks by "smell," RGA detection is based on quadrupole mass spectrometry, capturing the characteristic gas signals released by vaporized electrolyte with pinpoint accuracy. Even in a production environment filled with the odors of adhesive and plastic, it acts like a discerning eye, singling out trace electrolyte components from a complex gas mixture — completely eliminating false calls and missed detections.

⬆ Principle of quadrupole mass spectrometry

Dual-Station Design: Where Efficiency Meets Precision

The standout feature of this platform is its dual-chamber cyclic operation mode:

Detection capability reaches 120 μm, enabling accurate identification of micro leaks and preventive quality control.

While one chamber runs mass spectrometry analysis, the other can simultaneously load products and draw vacuum — the two chambers alternate in a seamless, highly efficient cycle.

Manual loading/unloading runs fully in parallel with the detection process, delivering a test throughput of up to 3,000 UPH.

With customizable fixtures, the number of units placed in each chamber can be adjusted to actual needs, making the system easily adaptable to different power bank product categories.

 ⬆ How the equipment works

⬆ Floor-standing dual-station test platform

Test Process: A Fully Closed Loop That Locks In Quality

Loading and sealing → vacuum extraction → RGA mass spectrometry analysis of electrolyte components → leak determination → re-inspection of at-risk batches.

Full Coverage: Quality Assurance from Cell to Finished Product

More importantly, this solution covers far more than finished power banks — it spans the entire production chain, including cells and semi-finished products. Starting from the cell manufacturing stage, RGA detection can identify defective units and eliminate quality issues at the source, achieving true full-process quality control.

03 Customer Value: Rebuilding Competitiveness Beyond Compliance

While competitors were still struggling to find a viable testing approach, this customer had already turned compliance into market competitiveness. Since the solution went live, the results have been tangible:

Risk eliminated: Detection accuracy improved dramatically, removing any concern about defective products reaching the market and fully relieving pressure to comply with the new standard.

Cost reduced: False-call rate cut by 80%, significantly lowering rework costs and material waste — with per-unit testing costs actually lower than before.

Efficiency upgraded:The 3,000 UPH throughput perfectly matches the customer's high-speed production line, substantially shortening order delivery cycles.

Brand confidence: As one of the first companies in the industry to achieve compliance using high-precision detection technology, "early compliance with the new national standard" has become a marketing selling point, creating clear differentiation among comparable products.

Conclusion

From 3C electronics to new-energy power batteries, from consumer power banks to energy storage equipment, Hiruisi has served multiple industry leaders in electrolyte detection, earning strong recognition for both technical capability and service quality.

We understand that for manufacturers, detection technology is never merely "the icing on the cake" — it is the lifeline of quality. Faced with the industry reshuffle triggered by the new national standard, Hiruisi is ready to be your technology partner, helping you sprint ahead on the compliance track and break through in market competition with more precise, more efficient detection solutions.

With nearly 20 years of focus on sealing detection, Hiruisi provides comprehensive electrolyte leak testing, RGA solution evaluation, and production line implementation support. If you have power bank testing requirements, feel free to leave a message or call us for a customized solution.