How important is it to choose the right material for a power bank's casing?

From the high-temperature hazard during charging, to the structural protection in case of accidental drops, and to the compliance requirements for security checks and passage, the shell material directly determines the safety, durability and applicability of power banks. Flame-retardant PC/ABS is currently the preferred material for power bank casings, and the benefits it brings precisely address the core demands of both users and enterprises.

Safety protection at its peak: From "fear of fire" to "prevention of fire", cutting off the source of potential hazards

Safety is always the top priority for power banks, and flame-retardant PC/ABS performs at a "protective shield" level in terms of safety. Firstly, its flame retardant grade directly reaches UL94 V-0 level, which means that even in extreme situations (such as internal short circuits, high-temperature roasting), the shell can self-extinguish within 30 seconds after encountering an open flame, and there will be no flaming molten droplets, thus preventing secondary combustion. More importantly, it can withstand a hot wire temperature as high as 900℃ without igniting or spreading flames, far exceeding the heat resistance limit of ordinary materials and eliminating the risk of fire from the source. At the same time, in the face of the continuous temperature rise during the charging of power banks, the ball pressure temperature of flame-retardant PC/ABS can reach up to 125℃. Even in high-temperature environments such as cars and sealed backpacks during summer when charging fast for a long time, the shell will not soften, deform or crack, avoiding the exposure of internal battery cells due to shell failure and further strengthening the safety defense line.

Compliance without pressure: Pass security checks easily and save costs for enterprises

For users, "power banks not passing security checks" is a common annoyance. Power banks without compliant materials are often stopped for not meeting safety standards. For enterprises, non-compliance with material regulations means that their products cannot pass national certification, leading to production delays and difficulties in market access. The flame-retardant PC/ABS has passed the authoritative certification of China Quality Certification Center (CQC), and fully complies with multiple national standards such as GB/T 5169 series and GB/T 1633. It directly meets the core requirements of the 3C whole machine certification for power banks from the material end.

Durable and durable: Say goodbye to "cracking upon drop", and remain reliable even after long-term use

In daily use, power banks are bound to be dropped, bumped or scratched. Ordinary plastic casings often crack when dropped, not only affecting the appearance but also possibly damaging the protection of the internal battery cells. Flame-retardant PC/ABS, with the dual advantages of "the impact resistance of PC + the toughness of ABS", has significantly enhanced its durability. Actual measurement data shows that when the power bank shell made of flame-retardant PC/ABS is dropped from a height of about 1 meter onto a concrete ground, there are no cracks on the shell, the clips are intact, and the internal battery cells and circuits are not affected. Meanwhile, its surface is hard and scratch-resistant. Even if it is placed in a backpack for a long time and rubbed against items such as keys and mobile phones, no obvious scratches or paint peeling will occur. It also has excellent anti-aging performance. Even when used in outdoor environments exposed to sun and rain, it will not become brittle due to aging, thus extending the overall service life of the power bank.

Environmental protection and low burden: No toxic gases are emitted during combustion, balancing safety and health

Although traditional halogen-containing flame-retardant materials have certain flame-retardant effects, they release black smoke and toxic corrosive gases when burning. In case of an accident, they will not only intensify the fire hazard but also may cause harm to the human respiratory tract. High-quality flame-retardant PC/ABS uses a halogen-free and environmentally friendly formula. When burning, it produces low smoke and toxicity, and hardly releases any harmful gases. Even in the event of extreme combustion, it can reduce secondary harm to the environment and human health. It not only conforms to the current trend of "green consumption", but also provides users with an additional layer of health protection when using it, especially suitable for densely populated scenarios such as homes and offices.

In conclusion, from the user's perspective, flame-retardant PC/ABS addresses the core pain points of "fear of fire, fear of breakage, and fear of failing security checks", making power banks safe to use and convenient to carry. From the perspective of enterprises, it can quickly meet compliance requirements, reduce production risks, and enhance product competitiveness at the same time. Choosing flame-retardant PC/ABS as the material for the power bank shell is not an "extra upgrade", but rather a "basic guarantee + value enhancement". It not only adheres to the safety bottom line but also takes into account durability and environmental friendliness, truly transforming power banks from "simple energy carriers" into "safe and reliable travel companions".