UNI-T UT677A Battery Internal Resistance Tester UT677A uses the AC 4-terminal test method to measure the internal resistance of the battery, which can measure the correct measurement value without being affected by the contact resistance between the test lead, the terminal, and the battery electrode. ● PC software supported ● Fast response: ≤200ms UT677A Battery Internal Resistance Tester Features of UT677A Battery Internal Resistance Tester The battery internal resistance tester is a measuring instrument used to measure the internal resistance, voltage, and temperature of rechargeable batteries such as lead-acid batteries and lithium batteries to judge the health status of the battery. It can also be used as an instrument to measure the ESR parameters of electrolytic capacitors. ● Internal resistance test: 0.000mΩ~3.100 Ω ● Voltage test: 0.000V~±71.00V ● Temperature test: -10.0℃~60.0℃ Applications of UT677A Battery Internal Resistance Tester Fast response: ≤200ms ● Measurement result judgment function ● 5000 pieces of data storage & rechargeable lithium battery ● Bluetooth APP (Android) supported UT677A Battery Internal Resistance Tester The whole machine is high-grade and beautiful, with a wide range, high resolution, convenient operation, convenient carrying, accurate, reliable, stable performance, and strong anti-interference ability. It is an indispensable instrument for battery production, battery installation, equipment production, equipment maintenance, and other scenarios. Specifications of UT677A Battery Internal Resistance Tester Battery resistance range 0.000mΩ~3mΩ / ±1%fs. ±20dgt 1uΩ Battery resistance range 3.000mΩ~30mΩ / ±0.5%fs. ±15dgt. 10uΩ Battery resistance range 3.000mΩ~300mΩ / ±0.5%fs. ±15dgt. 100uΩ Battery resistance range 300mΩ~3Ω /±0.5% fs. ±15dgt. 100mΩ Battery Voltage range 0.000V~±7 V/±0.2%fs. ±10dgt. 7 V~±71.00V/±0.2 % fs. ±10dgt. 1mV Temperature range -10.0°C~60.0°C (single range)/ ±1.0℃ 0.1℃ Screen 3.5 inches (320*240, 16-bit true color screen) Response time 200ms Measuring time About 2 sec USB interface Read real-time measurement values, read historical measurement records Data hold and storage 1. Manual hold and storage, automatic hold and storage 2. Up to 5000 set measurement data storage Measurement judgment function PASS, WARNING, FAIL judgment thresholds can be preset Power 1. DC 3.7V lithium battery 2. 5-bar display of power, reminding to charge in time Power consumption 300mA MIN/500mA MAX Automatic shut-down Around 15 minutes Suitable forsafety regulations IEC 61010