This accumulator internal resistance tester utilized colour resistance touch screen. It can be operated via finger or the touch pen with convenience and flexibility. It is portable The data can be known soon exactly. This instrument can store and process data of battery voltage and internal resistance. It will alarm for any battery failure. We can check download and delete data on the instrument. ■ High accuracy online test, large volume data a. Instrument test range is 0.000mQ-99.999mQ. ■ Smart warning on low power ensure test accuracy ■ Small foot print, light weight. ■ Automatic test mode convene user to measure. a. Automatic analysis on battery “worse" status. b. Record the history repot describe the battery quality curve. c. Compare and analyze battery in same group. d. Manage all batteries by different grades (Better, good, general, bad). b. Store 999 units battery information permanent (Each unit in- ■ eluding batteries up to 500 pieces > . ■ c. Each report can indicate 500 pieces batteries information perma- ■ nently. d. Battery volume test range: 5AH-6000AH. ■ 5"colour touch LCD. Chinese information modular operation. Great conversational interface. ■ Instrument can display chart and analyze column charts. ■ It can analyze volume and verify the battery quality level-better, good, bad. ■ It will display wave. Tell us practical battery highest, lowest and average power. Power wave (optional). ■ Via SD card port all test data can be stored in PC permanently. Track and analyze the battery “medical record". ■ Powerful data management. The instrument can be used separately without computer. ■ Strong overload protection on power. Make it work more reliable. ■ Recover overcurrent fault protection create more convenience. ■ Utilized latest SOC chip simplified circuit increase the reliability. ■ Large volume battery and adapter supply power together to con-