This part of GB/T 13337 stipulates the product name and definition of fixed vented lead-acid batteries (hereinafter referred to as batteries), the capacity specifications of batteries, large-scale external dimensions, terminal polarity marks and battery connection methods, etc. . This part of GB/T 13337 is applicable to switch operation, safety protection devices, signal systems, telecommunication devices, computers, emergency lighting, and batteries and battery packs for various DC power supplies.