Note: This product is only suitable for cars with 12V battery, the leakage does not exceed 5A.Four functions：
​1、Change the car battery continuously；
​2、Vehicle leakage detection；
​3、Display voltage；
​4、Display current；Six characteristics：
​1、Power management system with core processor；
​2、Battery voltage can be displayed（Prevent the use of low-power batteries，Can not achieve the purpose of battery replacement）；
​3、Current can be displayed（It can be used for leakage detection，You can also understand the static current of the car when it is not started）；
​4、Anti reverse connection protection of battery clamp（After reverse connection, the nixie tube does not light up，No electricity）；
​5、Over current protection（Bring with you5Safety film）；
​6、Automatic cycle display of voltage and current.Three major protections：
​1、Battery loss protection；
​2、Anti reverse connection protection of battery clamp；
​3、Over current protection；Three instructions：
​1、Connect the positive and negative electrodes of the battery clamp correctly，The digital tube will light up，And display the value，If the connection is reversed，The nixie tube doesn’t light up；
​2、Connect correctlyOBDInterface，gulesLEDThe light will be on，The connection was unsuccessful，Then redLEDNot bright；
​3、Voltage and current switching indication。BluetoothLEDbright，Indicates that the current digital display is current data，blueLEDNot bright，Indicates that the current nixie tube displays voltage data.Battery replacement process description
​Step1: Clamp the battery clamp reliably on the positive and negative poles of the spare battery（Red clip connected to positive pole，Black to negative.If the connection is correct，The digital tube will show the number（BluetoothLEDbright——Display current，blueLEDNot bright——Display voltage.If the positive and negative electrodes of the battery are reversed，Don’t worry，The nixie tube doesn’t light up，There is no electricity through.
​be careful：There is no connection atOBDBefore interface，The voltage displayed is correct，The current is not correct，Because it’s empty.
​Step2: Put the tool’sOBDSocket access to vehicleOBDInterface，If successful，gulesLEDThe light is on.
​Step3：Remove the battery of the original car，Put on a new battery.
​Step4：Disconnect the positive pole of the battery clamp of the tool，If the tool’s nixie tube and redLEDDU Liang，Indicates that the battery was replaced successfully.be careful：During battery replacement，Avoid using high current electrical appliances that consume more power on the vehicle，For example, seat heating，The headlamps，The air conditioning should be turned off，4Don’t open all the doors，Avoid excessive current.Flow description of vehicle leakage detection
​Step1：Clamp the battery clamp reliably on the positive and negative poles of the spare battery（Red clip connected to positive pole，Black to negative.If the connection is correct，The digital tube will show the number（BluetoothLEDbright——Display current，blueLEDNot bright——Display voltage.If the positive and negative electrodes of the battery are reversed，Don’t worry，The nixie tube doesn’t light up，There is no electricity through.
​be careful：There is no connection atOBDBefore interface，The voltage displayed is correct，The current is not correct，Because it’s empty.
​Step2：Put the tool’sOBDSocket access to vehicleOBDInterface，If successful，gulesLEDThe light is on.
​Step3：Remove the battery of the original car.Observe when blueLEDCurrent on，The general current is unstable，There will be small fluctuations in the values，For example, the automobile relay works，Stop it，At this time, the corresponding current is higher，Let’s go low.
​Step4：Pull out the safety pieces in the fuse box one by one，And observe the current change.If the current suddenly decreases，It is proved that the fuse has the possibility of electric leakag.Compare the car circuit diagram，Find the circuit or electrical appliance to which the fuse is connected，We can find out the leakage.
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​be careful：During battery replacement，Avoid using high current electrical appliances that consume more power on the vehicle，For example, seat heating，The headlamps，The air conditioning should be turned off，Don’t open all the doors，Avoid excessive current.