Model Number: 7500A_1
Key Specifications/Special Features:
Special adapter to prevent lose any data from replacing car batteryConnect this adapter from battery 9V dry battery or 12V battery to OBD II plug for continue power supply2 LEDs to show, if the battery with enough powerApplication: vehicles equipped with OBD II connectorFunctions: LED display, disconnected protection, low battery capacity alarmInstruction:1 Remove the key2 Connect power backup to the OBDII connector on the vehicle3 Go step 4 after first green light. It is bad connection or unavailable detection when you cant' see the first green light
4 Connect spare power (9V or 12V battery are both available) 12V battery is recommended
5 Make sure there are 2 green lights, the red light means the capacity of spare power is not enough, close all doors, replace the battery