Specifications: Multifunctional battery tester, this meter is mainly used to test all kinds of batterys voltage, discharge current, discharge power, discharge impedance, internal resistance, capacity, dump energy, energy consumption and running time. Display the measurement data through LCD screen. Use external shunt, can matched with 50A, 100A, 200A, 300A four kinds of shunt. Functions: 1. Voltage Measuring range: 0-200V. (when the test voltage is less than 8V, please use the independent power supply mode) Display format: less than 10V display as: 9.99V; less than 100V display as: 99.9V; greater than 100V display as: 199V Minimum resolution: 0.01V The starting test voltage: 0.05V Measurement accuracy: 1% 2. Current Measuring range: 0-10A (Type: PZEM-013); 0-300A(Type: PZEM-015) can set 50A, 100A, 200A,300A four range depend on the external shunt, the factory default is 100A. Display format: less than 1A display as: 999mA; 10A display as: 9.99A; 100A display as: 99.9A; ≥100A display as: 199A Minimum resolution: 1mA The starting test current: 10mA(Type: PZEM-013); 20mA(Type: PZEM-015) Measurement accuracy: 1% 3. Power Measuring range: 0-2000W (Type: PZEM-013); 0-60000W(Type: PZEM-015) Display format: 10W display as: 9.99W 100W display as: 99.9W 1000W display as: 999W 10000W display as: 9.99kW ≥10000W display as: 19.9kw Minimum resolution: 0.01W The starting test power: 0.1W (Type: PZEM-013); 0.2W (Type: PZEM-015) Measurement accuracy: 1% 4. Impedance Impedance=Voltage/Current Measuring range: 0-1000ohm Display format: 100ohm display as: 99.9ohm ≥100ohm display as: 999ohm When over the test range or the current is zero, it display "---" Minimum resolution: 0.1ohm Measurement accuracy: 1% 5. Internal Resistance Internal resistance = (Full voltage - Bring load voltage)/Bring load current, when the bring load voltage is larger than the maximum voltage, the internal resistance is zero. Measuring range: 0-999 milliohm Display format: 999 milliohm, when over the test range or the current is zero, it display "---". Minimum resolution: 1 milliohm Measurement accuracy: 1% Note: Before you test the internal resistance, you should preset the full voltage depend on the battery type, after it is fully charged you can use it to test; if you do not fully charge it, you can set the battery without load voltage is the full voltage, then test; the internal resistance is not a fixed value, the more the battery discharged, the bigger the resistance. 6. Capacity Measuring range: 0-1000AH Display format: 1AH display as: 999mAH 10AH display as: 9.99AH 100AH display as: 99.9AH 1000AH display as: 999AH Minimum resolution: 1mAH Measurement accuracy: 1% Note: Battery capacity testing is a cumulative process of discharge current versus time, it need some time, the time is depend on the discharge current; before you test the capacity, you should preset the full voltage and the cut-off voltage depend on the battery type, after it is fully charged you can use it to the discharge test; When the dump energy display blank, it means the discharge is over, this capacity display value is the batterys capacity. 7. Dump energy Dump energy is display vias the battery symbol, totally 10 grids, every grid present 10% energy. Dump energy is calculated vias the current battery voltage value, before test you should preset the full voltage and the cut-off voltage depend on the battery type; every grid voltage = (the highest voltage - the lowest voltage)/10. 8. Accumulate energy consumption Measuring range: 0-9999kWh Display format: 1kWh display as: 999Wh 10kWh display as: 9.99kWh 100kWh display as: 99.99kWh 1000kWh display as: 999.99kWh ≥1000kWh display as: 9999kWh Over the test range will become zero. Minimum resolution: 1Wh Measurement accuracy: 1% Note: 1Wh=0.001kWh=0.001 Kilowatt 9. Running time Measuring range: 0 ~ 999 hour (Without load the time will not accumulate) Display format: 0:00:00 ~ 999:59:59 (Over the test range will become zero) Item Name: Battery Tester Material: ABS Measuring Range: 10A(Without Shunt), 50A, 100A, 200A, 300A Features: Multifunctional, LCD Screen, Useful Item Size: 89.6mm x 44.6mm x 24.5mm/3.53" x 1.76" x 0.96" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Battery Tester 1 x Electric Wire or 1 x Battery Tester 1 x Electric Wire 1 x Shunt