The ES8020 is a professional-grade tester for lead-acid/Li-ion batteries, combining internal resistance, voltage, and temperature measurements in one device. Its 1kHz AC 4-terminal method ensures accurate readings without disconnecting batteries from live systems (e.g., UPS). With Bluetooth connectivity, 500-data storage, and IP54 protection, it’s ideal for battery maintenance, production, and quality control.

Specifications

Measurement Capabilities

• Resistance:
  • Range: 0.000mΩ–3.100Ω
  • Accuracy: ±0.5%
• Voltage:
  • Range: 0.000V–±71.00V
  • Accuracy: ±0.2%
• Temperature:
  • Range: -10.0°C–60.0°C
  • Accuracy: ±1.0°C

Technical

• Power: 3.7V Li-ion (5-hour runtime).
• Interfaces: USB, Bluetooth.
• Display: 3.5-inch color LCD (16-bit).
• Safety:
  • AC 3700V withstand voltage.
  • Complies with IEC 61010.
• Environmental:
  • Operating: -10°C–40°C, ≤80% RH.
  • Storage: -20°C–60°C, ≤70% RH.

Physical

• Dimensions: 190mm × 121mm × 51mm.
• Weight: 480g (with battery).

About Manufacturer

Fuzrr Technology (Guangzhou Zhengneng Electronic Technology Co., Ltd) is a professional manufacturer engaged in R&D, production, and sales. The factory is located in Guangzhou, the metropolis of China’s International Greater Bay Area Economic Circle, near Hong Kong, Macau, and Shenzhen in the south. The company specializes in utility locators, cable testers, multimeters, insulation resistance testers, and battery internal resistance testers, exporting to 80+ countries. With 15+ years of experience, Fuzrr operates automated production lines with 100+ skilled workers and offers OEM/ODM services. Its R&D team provides robust technical support for global projects.