Accurate Battery Diagnosis: This 6V 8V 12V 16V 24V car battery tester can accurately measure the remaining power of the battery and check its health status, whether it can provide sufficient power for your car 6V 8V 12V 24V Selectable: This 12V battery load tester is suitable for 6V and 12V lead-acid batteries, including flooded, gel, maintenance-free, and sealed batteries Large LCD Screen: This 12V battery load tester has a large LCD screen, which can display the test results more clearly, and the screen has backlight, which can be used at night or in the dark Safety Protection: This car battery load tester has over-voltage, over-current, short circuit protection and reverse connection protection Important Note: To prevent damage, do not use the tester for more than 10 seconds, and be aware that there may be smoke during the initial use This digital battery tester can quickly and accurately measure the remaining power of 6/812/16/24V batteries, such as car batteries, motorcycle batteries, 8V golf cart batteries, off-road vehicle batteries, RV batteries, boat batteries, truck batteries, etc. It can also test 6V and 16V batteries, such as lawnmower batteries, e-bike batteries, and other small batteries. This battery tester has a large backlit LCD screen, which makes it easy to read in the dark , so you know when it's time to recharge or replace the battery. It's a must have for every vehicle owner and a good helper for your daily or emergency use