Supply voltage: DC12V / 5V; Working current: less than 35mA; Maximum battery input voltage: 85V; Maximum error of discharge current: 1%+2mA; Voltage measurement error: 1%-3D; The maximum error of the overall measurement results: 01-02A 25%, 03-05A 16%, 06-10A 12%, 11A-26A 1%Quick start instructions (factory default): 1. Full charged the test battery (or bank), positive and negative electrodes are respectively connected to the blue terminal of the bat+ and bat-, the connection line is recommended as far as possible short and thick using DC 12V operating voltage, on the test instrument display discharge current.2. Press the S -- or S++ button can change the setting current within 01-26A, when the current is correct, press SK button to start test, the tester can intelligent selection of cell types and formulate termination voltage, start testing "RUN" indicator lights, digital tube display values from ah capacity, energy wh, voltage V and A current take turns display. When the test is completed, the digital tube stays in the Ah fast flashing with a voice reminder, "RUN" indicator lights off.3. After the completion can press the "SK" button to make the tester stop flashing alarm, you can also press the S -- or S++ button switch check battery capacity Ah, energy Wh and discharge plateau voltage V, when pressed "SK" button again, tester returned to the startup current of the setting state, can be repeated previous operation to battery test.Note: during test alarm state, must be carried out one key operation, the backup data will be cleared, if not doing one button operation, the backup will always save the results, even if the is cut off The meaning and processing of error code Err:Err1: the battery voltage is too high, please confirm that the battery voltage is lower than 85V before test.Err2: the battery voltage is too low (below the set value of the termination voltage), please confirm the battery voltage and reset. If the battery is connected reversed and the four wire mode voltage measurement is not connected or connected to the reverse is also display Err2.Err3: the battery does not support setting discharge current or circuit is too high, please use a smaller current to test battery, and to that the cell line is thick and short, between the electrode contact is good.Err4: tube damage, the problem generally occurs after the bad transformation, can replace the tube, substitute models have P75NF75, etc..Err5: beyond the test constraints this status is only possible when the limit function is turned on (LPon), under on behalf of the set conditions the discharge is more than 12W, the tester to prevent heat overheating and take protective measures. Users can DIY yourself (to increase the heat sink or installation of fans), and enter the function setting to close the limit (LPoF), now you can use more than 12W .colour: greenMaterial: PCSize: 97 x 62 x 38mmPackage Contents:1 x Lithium Battery Tester (Test tools does not includes)Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.