Targeting the production testing needs of rechargeable batteries, a dedicated comprehensive tester for rechargeable batteries has been developed. This tester can perform quantitative and precise measurements of some basic parameters of batteries, including open-circuit voltage, internal resistance, charging and discharging performance, and battery capacity. Especially for lithium batteries, it also has functions such as overcharge protection, overdischarge protection, overcurrent protection, and short-circuit protection, and can measure the corresponding values, greatly facilitating battery production and pre-sales and after-sales services. With just a few simple steps, the performance and quality of batteries can be intuitively judged. It also has a rapid screening function, allowing the setting of upper and lower limits for measurement parameters, making it easy to quickly detect defective batteries from a batch of finished batteries, thereby improving production efficiency. Battery Comprehensive Tester BTS-2002 Function Introduction: Common rechargeable batteries include lithium batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and sealed lead-acid batteries, etc. To meet the production testing needs of these rechargeable batteries, Shenzhen Hongda Electronic Equipment Co., Ltd. has developed a dedicated comprehensive tester for rechargeable batteries. This tester can perform quantitative and precise measurements of some basic parameters of batteries, including open-circuit voltage, internal resistance, charging and discharging performance, and battery capacity. Especially for lithium batteries, it also has functions such as overcharge protection, overdischarge protection, overcurrent protection, and short-circuit protection, and can measure the corresponding values. With just a few simple steps, the performance and quality of batteries can be intuitively judged. It also has a rapid screening function, allowing the setting of upper and lower limits for measurement parameters, making it easy to quickly detect defective batteries from a batch of finished batteries, thereby improving production efficiency. In addition, some special functions have been added to give it the characteristics of some general-purpose instruments and equipment, expanding the flexibility of use and featuring a wide range of applications.