T/GDBIA 01-2023 Active

Main Technical Content: 6.6 Rapid Detection Items, Methods, and Requirements 6.6.1 Appearance and Markings Under good lighting conditions, visually inspect the appearance of the battery. The appearance of electric bicycle batteries should be free from deformation, damage or cracks, modification marks, rust, or mechanical damage. The battery's nameplate markings should be clear. Batteries with missing nameplate markings, damaged shells, cracks, modification marks, rust, or mechanical damage should not be used further and should enter the battery recycling stage. 6.6.2 Shell Insulation Test the insulation of the battery shell and positive/negative electrodes using an insulation tester or multimeter. The insulation resistance between the battery shell and electrodes should be greater than 20 MΩ. Batteries that do not meet this insulation resistance requirement should not be used further and should enter the battery recycling stage. 6.6.3 Charging/Discharging Interface Visually inspect the charging/discharging ports of the battery under good lighting conditions. The ports should be free from rust, damage, or exposed internal wiring. Batteries with rusted, damaged, or exposed internal wiring should not be used further and should enter the battery recycling stage. 6.6.4 Voltage After charging the battery fully using the compatible charger or following the method specified in GB/T 36972-2018 Section 6.2.1.1, test the battery voltage using a multimeter. The battery voltage should be within the range specified on the nameplate. If the voltage range on the nameplate is unclear, it should be determined according to the requirements of GB 17761 Section 4.1. At full charge, the battery voltage should not be lower than 85% of the nominal voltage. Batteries that do not meet this voltage requirement should not be used further and should enter the battery recycling stage. 6.6.5 Internal Resistance Rate Test the battery's internal resistance according to GB/