In a recent professional teardown, Dianchi uncovered an internal power bank design powered by an ATL pouch-type lithium-ion cell that fully complies with the new Chinese standard for power banks.
Measuring in at 995662B, this cell delivers a nominal voltage of 3.7V, a capacity of 5000mAh, and a total energy of 18.5Wh, while holding full 3C certification. Utilizing flexible pouch packaging wrapped in a standard aluminum-plastic film, the cell is firmly anchored inside the chassis via foam padding. As the beating heart of any portable power bank, the battery cell dictates the overall capacity, thermal management, and long-term safety of the device.
The latest Chinese standards strictly enforce intrinsic cell safety, raising the bar for stability under high temperatures, overcharging, crushing, nail penetration, and aging cycles. This evolution is steering the power bank market away from a pure specification race—such as raw capacity and fast-charging wattage—toward a new era centered on safety compliance and ultimate reliability.
Furthermore, we notes that ATL has been instrumental in drafting and establishing these Chinese standards, continuously integrating comprehensive quality control into industry-wide benchmarks. As a cornerstone supplier in the battery ecosystem, ATL has anticipated these regulatory shifts by mass-producing compliant, next-generation cells to empower OEMs with premium, worry-free hardware solutions.
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