National standards for electric two-wheeled vehicle batteries are formulated primarily around safety performance, product specifications, and environmental requirements, with the aim of enhancing vehicle operational safety and standardizing industry practices. Currently, the most widely enforced regulations domestically are those outlined in the *Safety Technical Specifications for Electric Bicycles*, which establish clear limits regarding battery voltage, total vehicle weight, and vehicle performance. Under these new national standards, the maximum design speed for electric bicycles must not exceed 25 km/h; the total vehicle weight typically does not exceed 55 kilograms; and the battery voltage is generally standardized at 48V.
These national standards impose specific safety requirements on both lead-acid and lithium-ion batteries. For instance, batteries must incorporate protective features against short circuits, overcharging, and over-discharging, while also meeting testing criteria for heat resistance, water resistance, and vibration resistance. Lithium-ion batteries, in particular, are required to undergo a rigorous series of safety tests to prevent accidents caused by electrical faults or battery aging. Legitimate, standards-compliant batteries typically bear product certification marks, manufacturing details, and quality inspection reports, making them easily identifiable to consumers.
The national standards also address requirements regarding battery recycling and environmental protection. Given that discarded batteries contain various chemical substances, manufacturers and sales channels are mandated to establish standardized mechanisms for recycling and disposal in order to minimize environmental pollution. For consumers, choosing an electric two-wheeled vehicle battery that complies with national standards not only ensures that the vehicle can be properly registered and legally operated on public roads, but also significantly enhances the safety and stability of their daily riding experience.