Describe:100% new and high qualityMaterial: plasticColor: see pictureSize: Length 10.8cm/4.25in, Width 5.8cm/2.3inPackage Includes:1PC Battery Capacity TesterModel: BT-168DBattery nominal voltage: 1.5VJudgment 1: 1.28 ~ 1.5V is goodDiscrimination 2: 1.15 ~ 1.27V differenceJudgment 3: below 1.14needs to be charged9V:6F22, PP3, MN1604Judgment 4: 7.8~9V is OKDiscrimination 5: 6~7.7V differenceJudgment 6: Charge below 5.9VMeasuring environment: 0-40, 25%-80%RHStandard configuration: bare watch (no battery required)Note: Only the pressure measurement function (that is, the remaining battery power), rather than directly detecting the battery capacity, please buyers do not misunderstand.The listed price is the unit price of the machine, not including the battery shown in the picture.This product can only measure 1.5V batteries and 9V batteries. If you measure batteries with other voltages, it will burn out the instrument.Speedmaster Nanfu battery cannot be measuredThis product does not need a built-in battery for measurement, and the display depends on the power of the battery under testThe voltage of the battery measured by this product is displayed in V. The voltage of the battery is proportional to the power, the greater the voltage, the more power the battery hasThis product mainly measures whether the battery is charged or not. If you are not a professional voltage measuring instrument, please do not buy it if you need it!Product Description9v battery:The full voltage of Ni-MH, Lithium, and Alkaline is different, but it must be above 8V, and it is generally below 7V when there is no power;1.5V disposable battery (including 1.5V alkaline button battery): full charge is about 1.6V, no power is about 1.0V;1.2v nickel metal hydride, nickel cadmium rechargeable battery:Full power is about 1.3V, no power is about 1.0VNote:1. Please allow 5-10mm differences due to manual measurement, thanks.2. The actual color of the product may be slightly different from the picture, and the website is caused by various factors such as the brightness of the monitor and the brightness of the light.