Electric bicycle new national standard charging plug exposure: lead acid / lithium electricity classification design, cross-brand universal

CTOnews.com, December 12 news, the European Union recently set a standard for digital products to force the use of USB-C interface, so that mobile phones, tablets, etc., have a unified charging interface, causing heated discussion in the industry. When we turn our attention to another field with many brands and complicated interfaces-electric bicycles, there is still no unified standard at present.

In fact, as early as April 4, 2019, the mandatory national standard "Safety Technical requirements for Electric Bicycle Chargers" began to be drafted. In June 2022, the Ministry of Industry and Information Technology openly solicited opinions on the "Safety Technical requirements for Electric Bicycle Chargers" and other national standards (approved draft), and the new national standard specifications for electric bicycle chargers and plugs were officially exposed.

As can be seen from the diagram given in the document, the new GB abandoned the old direct plug-in charging interface, and classified the interfaces of lead-acid battery and lithium-ion battery to avoid misuse.

In addition, the new power interface uses the communication protocol handshake, if the voltage does not match will not be able to charge.

CTOnews.com learned that the document also carries out shell impact, drop, insulation, fuses and other requirements for the safety of electric bicycle chargers. You can check the details in the linked file below.

Standard approval draft and compilation description of "Safety Technical requirements for Chargers for Electric Bicycle": click here to download