Item Type: Car Battery Testing Tool Material: Aluminium Alloy+ABS Fitment: Universal for 1996 and Later Vehicle How to Use: Connect the positive pole of the battery with the red clip and the negative pole with the black clip (the positive and negative poles will burn the on-board computer). Plug in the red light, and then plug in the OBD plug of the car. At this time, a beep has been made, indicating that the connection is normal. At this time, you can replace the battery, operate carefully, pay attention to the replacement of the battery, be sure to lock the car, do not turn on the lights and other electrical equipment, and do not ground the battery positive electrode, otherwise the fuse of the car OBD socket will be burned. In order to obtain a good battery, the tool with the red clip is released for the first time. If it also falls at this time, it will sound, indicating success. If there is no sound, it indicates that the fuse has been burned up. Package List 1 x Car Battery Testing Tool 1Like all ODBII ports, it can work normally, and it can be used on any vehicle that uses OBDII in 1996 and later. It is used to reserve the memory setup you set and other devices on the vehicle controlled by the car memory protector. 2To better protect your car, the memory protection program is more reliable in terms of overload protection. Powered by the starter with 12V socket, plug it into the OBD II car memory protector. Keep the vehicle code and electronic presets, it will be a better choice. 3Compared with most OBDII PRO on the market, our cable uses highquality copper wire, silicone flameretardant cable, its flexibility is not easy to be broken. 4Easy to operate, just insert the two racks into the battery respectively, and then insert the 16PIN plug into the OBD port of the car whose battery is to be replaced. 5Processed with highquality materials of aluminium alloy and ABS, wearresistant, hightemperature resistant, and have a long service life.